Revert "Change build path of executables to output/dll but gooder"

This reverts commit bb0e92a830.

I can't build again. e.g:
Unable to move file "..\..\output\BizHawk.WinForms.Controls.dll" to "../../output\dll/BizHawk.WinForms.Controls.dll". Cannot create a file when that file already exists.

We've failed twice now. Please give a rationale for why we have to move these files around.

src/MainSlnCommon.props

@@ -6,7 +6,7 @@
 		<DocumentationFile>$(ProjectDir)bin/doc_comments.xml</DocumentationFile>
 		<MSBuildWarningsAsMessages>NU1702</MSBuildWarningsAsMessages>
 		<NoWarn>CS1573;CS1591;NU1701</NoWarn>
-		<OutputPath>$(ProjectDir)../../output/dll</OutputPath>
+		<OutputPath>$(ProjectDir)../../output</OutputPath>
 	</PropertyGroup>
 	<ItemGroup>
 		<AdditionalFiles Include="$(ProjectDir)../../.stylecop.json" />

src/MainSlnExecutable.props

@@ -1,7 +1,6 @@
 <Project>
 	<Import Project="MainSlnCommon.props" />
 	<PropertyGroup>
-		<OutputPath>$(ProjectDir)../../output</OutputPath>
 		<TargetName>$(MSBuildProjectName.Substring($([MSBuild]::Add($(MSBuildProjectName.LastIndexOf('.')), 1))))</TargetName>
 	</PropertyGroup>
 	<PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
@@ -10,13 +9,4 @@
 	<PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
 		<OutputType>WinExe</OutputType>
 	</PropertyGroup>
-	<Target Name="PostBuild" AfterTargets="PostBuildEvent">
-		<ItemGroup>
-			<NotExecFilesFromExecProj Include="$(OutputPath)*.deps.json" />
-			<NotExecFilesFromExecProj Include="$(OutputPath)*.dll" />
-			<NotExecFilesFromExecProj Include="$(OutputPath)*.pdb" />
-			<NotExecFilesFromExecProj Include="$(OutputPath)*.xml" />
-		</ItemGroup>
-		<Move Condition=" $(IsTargetingNetFramework) " SourceFiles="@(NotExecFilesFromExecProj)" DestinationFolder="$(OutputPath)dll/" />
-	</Target>
 </Project>