[mplayer2] Removed recipe until upstream fix
[mplayer2] Removed recipe until upstream fix

Build failure of mplayer2 is known in upstream. For the time being I am
removing the recipe to further verify the image.

allsey87/meta-bebot-temp,gumstix/meta-gumstix-extras,allsey87/meta-bebot-temp,gumstix/meta-gumstix-extras,gumstix/meta-gumstix-extras,allsey87/meta-bebot-temp