Remove private memcpy wrapper that is no longer needed since r19847 and may cause issues with newer gcc versions, inspired by patch in FS#10676 by Duy Nguyen

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23178 a1c6a512-1295-4272-9138-f99709370657

apps/plugins/doom/rockdoom.c

@@ -181,11 +181,6 @@ cont:
     /* NOTREACHED */
 }
 
-inline void* memcpy(void* dst, const void* src, size_t size)
-{
-   return rb->memcpy(dst, src, size);
-}
-
 struct argvlist
 {
    int timedemo;        // 1 says there's a timedemo

apps/plugins/doom/rockmacros.h

@@ -72,9 +72,6 @@ int my_close(int id);
 #define strcat(a,b)        rb->strcat((a),(b))
 #define snprintf           rb->snprintf
 
-/* Using #define isn't enough with GCC 4.0.1 */
-inline void* memcpy(void* dst, const void* src, size_t size);
-
 #define PACKEDATTR __attribute__((packed)) // Needed for a few things
 #define GAMEBASE ROCKBOX_DIR "/doom/"
 //#define SIMPLECHECKS