Revert "Specializing numeric_limits for float16 in any case"

This reverts commit 649d8a07f3.

openVulkanoCpp/Math/Float16.hpp

@@ -236,14 +236,7 @@ namespace std
 			return hash<uint16_t>()(key.m_data);
 		}
 	};
-}
 
-#endif
-#undef __has_keyword
-
-
-namespace std
-{
 	template <>
 	class numeric_limits<float16>
 	{
@@ -286,5 +279,9 @@ namespace std
 	};
 }
 
+#endif
+#undef __has_keyword
+
+
 typedef float16 fp16;
 typedef float16 half;