Remove diagnostic suppression around VirtualStaticsInInterfaces

Author: jeffhandley

src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/RuntimeFeature.cs

@@ -49,9 +49,7 @@ public static bool IsSupported(string feature)
                 case ByRefFields:
                 case UnmanagedSignatureCallingConvention:
                 case DefaultImplementationsOfInterfaces:
-#pragma warning disable CA2252
                 case VirtualStaticsInInterfaces:
-#pragma warning restore CA2252
                     return true;
                 case nameof(IsDynamicCodeSupported):
                     return IsDynamicCodeSupported;