Revert "/platform/frameworks/base: Fix SystemUI crash on Recent App"

 * Causing even worse behavior.

This reverts commit 923105855ae9795f5b2bbfcc266a7a9e5d5187fe.

Change-Id: Ie69107b9e1cf37c98d17900d1abb62ed9c0dfe43
Merge branch 'cm-10.2' into martincz