Strips dummy data off GBA roms to reduce size.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                20101   21736  92.5% -lh5- 9710 Apr 24  2007 removeffs
[generic]                  512    1070  47.9% -lh5- fcf9 Apr 24  2007 Source/removeffs.c
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         2 files   20613   22806  90.4%            Feb 13 06:34