Remove redundant assert(render) in ff_xvmc_init_block().  The immediately following if condition checks render and does an assert if it fails.
Remove redundant assert(render) in ff_xvmc_init_block().  The immediately
following if condition checks render and does an assert if it fails.


git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@17304 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg