Remove DESKTOPCLR

Rx.NET/Source/System.Reactive/System.Reactive.csproj

@@ -24,11 +24,11 @@
     <AssemblyVersion>4.0.3000.0</AssemblyVersion>
   </PropertyGroup>
   <PropertyGroup Condition="'$(TargetFramework)' == 'net45'">
-    <DefineConstants>$(DefineConstants);NO_EVENTARGS_CONSTRAINT;HAS_WINRT;PREFER_ASYNC;USE_TIMER_SELF_ROOT;DESKTOPCLR;DESKTOPCLR45</DefineConstants>
+    <DefineConstants>$(DefineConstants);NO_EVENTARGS_CONSTRAINT;HAS_WINRT;PREFER_ASYNC;USE_TIMER_SELF_ROOT</DefineConstants>
     <AssemblyVersion>4.0.1000.0</AssemblyVersion>
   </PropertyGroup>
   <PropertyGroup Condition="'$(TargetFramework)' == 'net46'">
-    <DefineConstants>$(DefineConstants);NO_EVENTARGS_CONSTRAINT;HAS_WINRT;PREFER_ASYNC;USE_TIMER_SELF_ROOT;HAS_TPL46;DESKTOPCLR;DESKTOPCLR46</DefineConstants>
+    <DefineConstants>$(DefineConstants);NO_EVENTARGS_CONSTRAINT;HAS_WINRT;PREFER_ASYNC;USE_TIMER_SELF_ROOT;HAS_TPL46</DefineConstants>
     <AssemblyVersion>4.0.3000.0</AssemblyVersion>
   </PropertyGroup>
   <PropertyGroup Condition="'$(TargetFramework)' == 'uap10.0'">