Update csproj

STUN/STUN.csproj

@@ -4,13 +4,6 @@
     <TargetFramework>netstandard2.0</TargetFramework>
     <LangVersion>latest</LangVersion>
     <Nullable>enable</Nullable>
-  </PropertyGroup>
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
-    <DefineConstants>TRACE;ReactiveUI</DefineConstants>
-  </PropertyGroup>
-
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
     <DefineConstants>TRACE;ReactiveUI</DefineConstants>
   </PropertyGroup>