fix linux compiling

libs/discordrpc/serialization.h

@@ -2,24 +2,10 @@
 
 #include <stdint.h>
 
-#ifndef __MINGW32__
-#pragma warning(push)
-
-#pragma warning(disable : 4061) // enum is not explicitly handled by a case label
-#pragma warning(disable : 4365) // signed/unsigned mismatch
-#pragma warning(disable : 4464) // relative include path contains
-#pragma warning(disable : 4668) // is not defined as a preprocessor macro
-#pragma warning(disable : 6313) // Incorrect operator
-#endif                          // __MINGW32__
-
 #include "rapidjson/document.h"
 #include "rapidjson/stringbuffer.h"
 #include "rapidjson/writer.h"
 
-#ifndef __MINGW32__
-#pragma warning(pop)
-#endif // __MINGW32__
-
 // if only there was a standard library function for this
 template <size_t Len>
 inline size_t StringCopy(char (&dest)[Len], const char* src)