Revert "Give the drawer background more definition instead of just a solid color."

This reverts commit d5a9c14a976d092e500cae0e36222a24a76a9895.
Revert "Introducing the PreferenceDrawerActivity which makes use of the new navigation drawer UI google has introduced in updates to many of their apps.  This relies on headers which are displayed in the drawer and preference fragments as the main content."

This reverts commit cdf0147785701abc868d0afac40bdf6e1109f1d8.
Frameworks: I don't have ColorFilterMaker...
P.S: Fix ColorFilterMake readability

Change-Id: I10dda6ee7267c1c609fa4dec9f4b57cccb15f618