Revert "move media_*.xml files from msm7x30 and increase quality"

This reverts commit 58c3e055cec5f419d6290125f77978df7a1fc8c2.
remove media_*.xml files, they are provided by msm7x30-common

Change-Id: I0488e1cd9235cfbc2a7672143db388b8346b1961