Revert "PhoneWindowManager: add ability to use EdgeGestureService for system gestures."

This reverts commit 5df39e24b58ee775b5b7b7cb02e2d17a6d7d89bc.

Conflicts:

	core/java/android/provider/Settings.java
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
Revert "framework/base: Add EdgeGesture service."

This reverts commit 27ccc880ccde614deba4df9bb97a4ccf2afc359a.

Conflicts:

	core/res/res/values/config.xml
	core/res/res/values/symbols.xml