Remove now unused lseek compat

Author: Starbuck5

src_c/rwobject.c

@@ -31,21 +31,6 @@
 
 #include "doc/pygame_doc.h"
 
-#if defined(_WIN32)
-#define PG_LSEEK _lseeki64
-#elif defined(__APPLE__)
-/* Mac does not implement lseek64 */
-#define PG_LSEEK lseek
-#elif defined(__EMSCRIPTEN__)
-/* emsdk mvp 1.0 does not implement lseek64  */
-#define PG_LSEEK lseek
-#elif defined(_LARGEFILE64_SOURCE)
-/* for glibc system that support LFS */
-#define PG_LSEEK lseek64
-#else
-#define PG_LSEEK lseek
-#endif
-
 typedef struct {
     PyObject *read;
     PyObject *write;