Don't automatically free temporary memory, let the application call SDL_FreeTemporaryMemory() when it's ready.

Also mark up all functions that return temporary memory with SDL_DECLSPEC_TEMP, to help people implementing language bindings.

Fixes https://github.com/libsdl-org/SDL/issues/10378

include/SDL3/SDL_storage.h

@@ -401,9 +401,6 @@ extern SDL_DECLSPEC Uint64 SDLCALL SDL_GetStorageSpaceRemaining(SDL_Storage *sto
  * convenience, but if `count` is non-NULL, on return it will contain the
  * number of items in the array, not counting the NULL terminator.
  *
- * This returns temporary memory which will be automatically freed later, and
- * can be claimed with SDL_ClaimTemporaryMemory().
- *
  * \param storage a storage container.
  * \param path the path of the directory to enumerate.
  * \param pattern the pattern that files in the directory must match. Can be
@@ -420,7 +417,7 @@ extern SDL_DECLSPEC Uint64 SDLCALL SDL_GetStorageSpaceRemaining(SDL_Storage *sto
  *
  * \since This function is available since SDL 3.0.0.
  */
-extern SDL_DECLSPEC const char * const * SDLCALL SDL_GlobStorageDirectory(SDL_Storage *storage, const char *path, const char *pattern, SDL_GlobFlags flags, int *count);
+extern SDL_DECLSPEC_TEMP const char * const * SDLCALL SDL_GlobStorageDirectory(SDL_Storage *storage, const char *path, const char *pattern, SDL_GlobFlags flags, int *count);
 
 /* Ends C function definitions when using C++ */
 #ifdef __cplusplus