Revert "Fixes for device specific dock support"

This reverts commit 43b80df7aea2fa6fa973ca3c5d639ee3f5582fd1.

Conflicts:
	core/res/res/values/config.xml
	packages/SystemUI/res/values/dimens.xml

Change-Id: Ic5c09abbf3c2c51d1bcb79bda713c025ff3d44d8