project file cleanup -- removes a remaining GDT

Change-Id: I2bacbb70e943e150f303ca29470b8aa85b5c5e75

Author: chesik-amd

Build/VS2015/GPUPerfAPICounterGenerator.vcxproj

@@ -181,15 +181,6 @@
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup />
-  <ItemDefinitionGroup>
-    <Lib>
-      <OutputFile>$(OutDir)$(GDTProjectName)$(TargetExt)</OutputFile>
-    </Lib>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-  </ItemDefinitionGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>