i9300: init: cleanup

Change-Id: I76d330088c9fcf6e6ce20388980293d366af2997
(cherry picked from commit dd3eb873d5f1fff987cd31441e25fe4e640549d2)
Revert "i9300: Audio updates"

This reverts commit a62c42123d733f5a5e2e1e3f89c6154054abc5bd.

(cherry picked from commit 1a8be87c537d15b61d50f32d6b7608e121be0f24)
init: adjust lmk minfree values to kitkat ones

(cherry picked from commit 177431a2410d3d6c37c9c40423adccc82508bf9f)