Revert "Settings: Audio Themes Support [3/3]"

This reverts commit a8014ba88e28d87d8b8769f7df8b6451cc204351.

Change-Id: I72a76ffb52ab4d6497adaa363b6e03ca2b7aec4d
Signed-off-by: MURA Stefano [STELIX PippoX3] <ssspinni@gmail.com>