mplayer2: Remove patches

* they don't apply to latest revision and I don't know if someone
  is still maintaining them or care about them

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
packagegroup-shr: Make it MACHINE_ARCH because eve is not for all

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>