Remove broken in-memory provider

Samples.sln

@@ -84,8 +84,6 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Elsa.Samples.ForLoopConsole
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Elsa.Samples.ReadLineEchoConsole", "src\samples\Elsa.Samples.ReadLineEchoConsole\Elsa.Samples.ReadLineEchoConsole.csproj", "{867CB845-B803-4D40-9360-3D11ADBD9CE9}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Elsa.YesSql.Provider.Sqlite.InMemory", "src\core\Elsa.YesSql.Provider.Sqlite.InMemory\Elsa.YesSql.Provider.Sqlite.InMemory.csproj", "{D0364288-3072-44F4-877C-7721C20BC27F}"
-EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Elsa.Core.IntegrationTests", "test\integration\Elsa.Core.IntegrationTests\Elsa.Core.IntegrationTests.csproj", "{4CB34AB3-01C9-4911-8914-EABAA744EAD3}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "component", "component", "{FC47A50F-03B2-47D8-AAFB-075314FBA186}"
@@ -223,10 +221,6 @@ Global
 		{867CB845-B803-4D40-9360-3D11ADBD9CE9}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{867CB845-B803-4D40-9360-3D11ADBD9CE9}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{867CB845-B803-4D40-9360-3D11ADBD9CE9}.Release|Any CPU.Build.0 = Release|Any CPU
-		{D0364288-3072-44F4-877C-7721C20BC27F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{D0364288-3072-44F4-877C-7721C20BC27F}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{D0364288-3072-44F4-877C-7721C20BC27F}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{D0364288-3072-44F4-877C-7721C20BC27F}.Release|Any CPU.Build.0 = Release|Any CPU
 		{4CB34AB3-01C9-4911-8914-EABAA744EAD3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{4CB34AB3-01C9-4911-8914-EABAA744EAD3}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{4CB34AB3-01C9-4911-8914-EABAA744EAD3}.Release|Any CPU.ActiveCfg = Release|Any CPU
@@ -317,7 +311,6 @@ Global
 		{150EF356-E8BC-4922-91C2-362017479409} = {7CD5C8D5-EC78-4A99-A514-F01CA7197AC8}
 		{F755FB1F-72FB-4F7B-8270-F5F40F4D6952} = {5E5E1E84-DDBC-40D6-B891-0D563A15A44A}
 		{867CB845-B803-4D40-9360-3D11ADBD9CE9} = {5E5E1E84-DDBC-40D6-B891-0D563A15A44A}
-		{D0364288-3072-44F4-877C-7721C20BC27F} = {35F44BE9-13D0-417C-A01A-F0787BEE6DC3}
 		{4CB34AB3-01C9-4911-8914-EABAA744EAD3} = {0A3C36AB-2ACF-4175-A512-66B4C3DB9371}
 		{FC47A50F-03B2-47D8-AAFB-075314FBA186} = {AB1AE008-6FD6-414C-8E88-D735F42E1FA6}
 		{BB5819C7-434A-4AC5-8B0E-6C4FA672EBD5} = {FC47A50F-03B2-47D8-AAFB-075314FBA186}

src/activities/Elsa.Activities.Timers/Triggers/InstantEventTrigger.cs

@@ -1,7 +1,6 @@
 using System.Threading;
 using System.Threading.Tasks;
 using Elsa.Extensions;
-using Elsa.Indexes;
 using Elsa.Services;
 using Elsa.Triggers;
 using NodaTime;

src/core/Elsa.Core/Elsa.Core.csproj

@@ -65,7 +65,6 @@
 
     <ItemGroup>
         <ProjectReference Include="..\Elsa.Abstractions\Elsa.Abstractions.csproj" />
-        <ProjectReference Include="..\Elsa.YesSql.Provider.Sqlite.InMemory\Elsa.YesSql.Provider.Sqlite.InMemory.csproj" />
     </ItemGroup>
 
     <ItemGroup>

src/core/Elsa.YesSql.Provider.Sqlite.InMemory/Elsa.YesSql.Provider.Sqlite.InMemory.csproj

@@ -1,32 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-    <PropertyGroup>
-        <TargetFramework>netstandard2.0</TargetFramework>
-        <LangVersion>latest</LangVersion>
-        <PackageVersion>1.0.0</PackageVersion>
-        <Authors>Elsa Contributors</Authors>
-        <Description>
-            Elsa is a set of workflow libraries and tools that enable lean and mean workflowing capabilities in any .NET Core application.
-            This package provides an in-memory Sqlite YesSQL provider, the default provider for Elsa.
-        </Description>
-        <Copyright>2020</Copyright>
-        <PackageProjectUrl>https://github.com/elsa-workflows/elsa-core</PackageProjectUrl>
-        <RepositoryUrl>https://github.com/elsa-workflows/elsa-core</RepositoryUrl>
-        <RepositoryType>GitHub</RepositoryType>
-        <PackageTags>elsa, workflows, orchard</PackageTags>
-        <PackageIcon>icon.png</PackageIcon>
-        <Nullable>enable</Nullable>
-    </PropertyGroup>
-
-    <ItemGroup>
-        <PackageReference Include="YesSql.Provider.Sqlite" Version="1.0.0-beta-1547"/>
-    </ItemGroup>
-
-    <ItemGroup>
-        <None Include="icon.png">
-            <Pack>True</Pack>
-            <PackagePath/>
-        </None>
-    </ItemGroup>
-
-</Project>

src/core/Elsa.YesSql.Provider.Sqlite.InMemory/InMemorySqliteConnection.cs

@@ -1,12 +0,0 @@
-using Microsoft.Data.Sqlite;
-
-namespace Elsa.YesSql.Provider.Sqlite.InMemory
-{
-    public class InMemorySqliteConnection : SqliteConnection
-    {
-        protected override void Dispose(bool disposing)
-        {
-            // Don't dispose anything.
-        }
-    }
-}

src/core/Elsa.YesSql.Provider.Sqlite.InMemory/InMemorySqliteDbProviderOptionsExtensions.cs

@@ -1,34 +0,0 @@
-using System;
-using System.Data;
-using YesSql;
-using YesSql.Provider.Sqlite;
-
-namespace Elsa.YesSql.Provider.Sqlite.InMemory
-{
-    public static class InMemorySqliteDbProviderOptionsExtensions
-    {
-        public static IConfiguration RegisterInMemorySqlite(this IConfiguration configuration)
-        {
-            SqlDialectFactory.SqlDialects["inmemorysqliteconnection"] = new InMemorySqliteDialect();
-            CommandInterpreterFactory.CommandInterpreters["inmemorysqliteconnection"] = d => new SqliteCommandInterpreter(d);
-
-            return configuration;
-        }
-
-        public static IConfiguration UseInMemorySqlite(
-            this IConfiguration configuration,
-            IsolationLevel isolationLevel = IsolationLevel.Serializable)
-        {
-            if (configuration == null)
-            {
-                throw new ArgumentNullException(nameof(configuration));
-            }
-
-            RegisterInMemorySqlite(configuration);
-            configuration.ConnectionFactory = new SingletonDbConnectionFactory<InMemorySqliteConnection>("Filename=:memory:");
-            configuration.IsolationLevel = isolationLevel;
-
-            return configuration;
-        }
-    }
-}

src/core/Elsa.YesSql.Provider.Sqlite.InMemory/InMemorySqliteDialect.cs

@@ -1,9 +0,0 @@
-using YesSql.Provider.Sqlite;
-
-namespace Elsa.YesSql.Provider.Sqlite.InMemory
-{
-    public class InMemorySqliteDialect : SqliteDialect
-    {
-        public override string Name => "InMemorySqlite";
-    }
-}

src/core/Elsa.YesSql.Provider.Sqlite.InMemory/SingletonDbConnectionFactory.cs

@@ -1,28 +0,0 @@
-using System;
-using System.Data.Common;
-using YesSql;
-
-namespace Elsa.YesSql.Provider.Sqlite.InMemory
-{
-    public class SingletonDbConnectionFactory<TDbConnection> : IConnectionFactory
-        where TDbConnection : DbConnection, new()
-    {
-        private readonly string _connectionString;
-        private DbConnection _connection;
-
-        public Type DbConnectionType => typeof(TDbConnection);
-
-        public SingletonDbConnectionFactory(string connectionString)
-        {
-            _connectionString = connectionString;
-        }
-
-        public DbConnection CreateConnection()
-        {
-            return _connection ??= new TDbConnection
-            {
-                ConnectionString = _connectionString
-            };
-        }
-    }
-}

src/samples/Elsa.Samples.WhileLoopWorker/Program.cs

@@ -3,7 +3,6 @@ using Elsa.Samples.WhileLoopWorker.Workflows;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using NodaTime;
-using YesSql.Provider.Sqlite;
 
 namespace Elsa.Samples.WhileLoopWorker
 {
@@ -20,7 +19,7 @@ namespace Elsa.Samples.WhileLoopWorker
                     (hostContext, services) =>
                     {
                         services
-                            .AddElsa(options => options.UsePersistence(db => db.UseSqLite("Data Source=elsa.db;Cache=Shared")))
+                            .AddElsa()
                             .AddConsoleActivities()
                             .AddTimerActivities(options => options.SweepInterval = Duration.FromSeconds(1))
                             .AddSingleton<PhoneCallService>()