Removed a few casts

src/OCPikeInterpreter.m

src/backend.cmod

src/error.c

src/main.c

src/modules/DVB/dvb.c

src/modules/Fuse/fuse.c

src/modules/Image/blit.c

src/modules/Image/colors.c

src/modules/Image/colortable.c

src/modules/Image/encodings/_xpm.c

src/modules/Image/encodings/avs.c

src/modules/Image/encodings/bmp.c

src/modules/Image/encodings/hrz.c

src/modules/Image/encodings/ilbm.c

src/modules/Image/encodings/pcx.c

src/modules/Image/encodings/png.c

src/modules/Image/encodings/pnm.c

src/modules/Image/encodings/psd.c

src/modules/Image/encodings/pvr.c

src/modules/Image/encodings/ras.c