libavcodec/wmadec.c:629: warning: unused variable `i'
libavcodec/wmadec.c:628: warning: unused variable `b'
libavcodec/wmadec.c:628: warning: unused variable `a'


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@19994 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b