Merge | Remove Extraneous Files (#3781)

* Remove MatchingRefApiCompatBaseline.txt

* Move TypeForwards to common project

* removing netcore editorconfig, should use solution-wide .editorconfig going forward

* Remove pinvoke exception file, should be covered via APIScan

* Remove netfx .editorconfig, should use solution-wide .editorconfig going forward

* Remove netfx GenerateThisAssemblyCs.targets and use the common one
This is adds the NugetPackageVersion field to the netfx project, but since these are internal fields, it should not matter.

Author: benrr101

src/Microsoft.Data.SqlClient/netcore/src/.editorconfig

@@ -861,7 +861,9 @@
     <Compile Include="$(CommonSourceRoot)System\Diagnostics\CodeAnalysis.cs">
       <Link>System\Diagnostics\CodeAnalysis.cs</Link>
     </Compile>
-    <Compile Include="Microsoft.Data.SqlClient.TypeForwards.cs" />
+    <Compile Include="$(CommonSourceRoot)TypeForwards.netcore.cs">
+      <Link>TypeForwards.netcore.cs</Link>
+    </Compile>
   </ItemGroup>
 
   <!-- Windows only -->

src/Microsoft.Data.SqlClient/netcore/src/MatchingRefApiCompatBaseline.txt

@@ -1080,7 +1080,7 @@
     <PackageReference Include="System.ValueTuple" />
     <PackageReference Include="System.Threading.Channels" />
   </ItemGroup>
-  <Import Project="$(NetFxSource)tools\targets\GenerateThisAssemblyCs.targets" />
+  <Import Project="$(ToolsDir)targets\GenerateThisAssemblyCs.targets" />
   <Import Project="$(NetFxSource)tools\targets\GenerateAssemblyRef.targets" />
   <Import Project="$(NetFxSource)tools\targets\GenerateAssemblyInfo.targets" />
 </Project>

src/Microsoft.Data.SqlClient/netcore/src/Microsoft.Data.SqlClient.csproj

@@ -2,6 +2,8 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+#if NET
+
 [assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(System.Data.SqlDbType))]
 [assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(System.Data.StatementCompletedEventArgs))]
 [assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(System.Data.StatementCompletedEventHandler))]
@@ -26,3 +28,5 @@
 [assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(System.Data.SqlTypes.SqlTruncateException))]
 [assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(System.Data.SqlTypes.SqlTypeException))]
 [assembly: System.Runtime.CompilerServices.TypeForwardedTo(typeof(System.Data.SqlTypes.SqlXml))]
+
+#endif