Revert "deinterlace: Fix blending of pictures with offset"
Revert "deinterlace: Fix blending of pictures with offset"

This broke 16-bytes align requirement needed by some archs.

This reverts commit ccb8f7239183480aba3219a3ef046b538aad697d.

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc