keep the functions below as they are usefull for debugging, testing,
experiments and development

revert
r11048 | diego | 2007-11-17 00:15:39 +0100 (Sat, 17 Nov 2007) | 4 lines

Remove unused functions, fixes the warnings:
snow.c:1163: warning: 'spatial_compose53i' defined but not used
snow.c:1313: warning: 'spatial_compose97i' defined but not used



git-svn-id: file:///var/local/repositories/ffmpeg/trunk@11173 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b