Move Nowarn (#63535)

Directory.Build.props

@@ -136,6 +136,8 @@
 
     <!-- // Temporary diagnostic code from https://github.com/dotnet/extensions/pull/4130 for metrics APIs used in test. -->
     <NoWarn>$(NoWarn);TBD</NoWarn>
+
+    <NoWarn Condition="'$(_DevBuild)' == 'true'">$(NoWarn);NU3027</NoWarn>
   </PropertyGroup>
 
   <!-- Source code settings -->

src/SiteExtensions/Directory.Build.props

@@ -8,7 +8,6 @@
     <BaseIntermediateOutputPath Condition="'$(DotNetBuildPass)' == '2'">$([MSBuild]::NormalizeDirectory('$(BaseIntermediateOutputPath)', '$(TargetArchitecture)'))</BaseIntermediateOutputPath>
     <IntermediateOutputPath Condition="'$(PlatformName)' == 'AnyCPU' AND '$(DotNetBuildPass)' == '2'">$([MSBuild]::NormalizeDirectory('$(BaseIntermediateOutputPath)', '$(Configuration)'))</IntermediateOutputPath>
     <IntermediateOutputPath Condition="'$(PlatformName)' != 'AnyCPU' AND '$(DotNetBuildPass)' == '2'">$([MSBuild]::NormalizeDirectory('$(BaseIntermediateOutputPath)', '$(PlatformName)', '$(Configuration)'))</IntermediateOutputPath>
-    <NoWarn Condition="'$(_DevBuild)' == 'true'">$(NoWarn);NU3027</NoWarn>
   </PropertyGroup>
 
 </Project>