libretro-desmume: remove unneeded patch

[vpeter4]

Just call make with CC variable.

But this package needs to fixed two other issues.

src/MMU_timing.h:158:28: error: left operand of shift expression '(-1 << 11)' is negative [-fpermissive]
  enum { TAGMASK = (u32)(~0 << TAGSHIFT) };

0 must be 0U.

And then there is some other error in src/wifi.cpp regarding WIFI_LOGGING_LEVEL.

[MilhouseVH]

Thanks @vpeter4 - I tested some of these changes but best way to test them all is likely to merge them. :)