Revert "Minor code adjustments for Navigation bar width change"

This reverts commit 7b5c532a1918cc8be8084bf670e71d3413820bb8.

Conflicts:

	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
Revert "Change in Nav Bar Width in landscape - 1/2"

This reverts commit c412603b5689e82630e32158ec7a43cc67caa3bf.
Revert "Realtime change of Nav Bar Height"

This reverts commit 130ccade097ee1c4c21a04dabe1b086c7006cc0b.

Conflicts:

	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
Revert "Navigation Bar: Ability to enable on every device 1/2"

This reverts commit ed5913e0bfb519df26c1d97f834ab2d2b6910ce0.
Nav bar + Dimensions (2/2)