Removes non-existent target files from override.targets (dotnet/coreclr#8264)

This commit revises override.targets not to import ``mono.targets`` and
``roslyn.xplat.targets`` which do not exist in Tools/

Commit migrated from https://github.com/dotnet/coreclr/commit/9a29a6e868f4abd8b733891faa0b3f3209853248

diff --git a/src/coreclr/tests/override.targets b/src/coreclr/tests/override.targets
index 8bdff51..36a9615 100644 (file)
--- a/src/coreclr/tests/override.targets
+++ b/src/coreclr/tests/override.targets
@@ -3,8 +3,6 @@
     Overrides for all other targets (including build tools) can go in this file.
   -->
 
-  <Import Project="mono.targets" Condition="'$(OsEnvironment)'=='Unix'" />
-  <Import Project="roslyn.xplat.targets" Condition="'$(OsEnvironment)'=='Unix'" />
   <!-- Contains overrides for the nuget reference resolution.  The regular nuget reference resolution will not 
        copy references local, which we need in order to correctly execute the xunit project -->
   <Import Project="xunitwrapper.targets" Condition="'$(IsXunitWrapperProject)'=='true'" />