Revert "Add people lookup settings keys"

This reverts commit 4fa3258f7cc6552495aefe412eb723f130274188.
Revert "Frameworks: Open source google dialer and more (4/5)"

This reverts commit a19532187cc5799c9032075e9bebe63b9a7c0ba8.
[1/4] Dialer lookup

Squashed commit of the following:

commit 780211109f80d07b11d7a0261544b1a0fed10ea0
Author: Xiao-Long Chen <chenxiaolong@cxl.epac.to>
Date:   Fri Mar 7 17:11:02 2014 -0500

    Add people lookup settings keys

    Change-Id: I2ff9bb7684d04f4f9b640939c7db269873aa3308

commit 0e5ed5ac782c2ee253179a03a2c5842ad3de6831
Author: Xiao-Long Chen <chenxiaolong@cxl.epac.to>
Date:   Fri Jan 31 11:43:10 2014 -0500

    Frameworks: Add settings keys for forward and reverse phone number lookup

    Change-Id: I1c4c7825b4361b7a52dd419f83afd7b9fcbe1494

Change-Id: I68e4214e813695021b64c29ab1d831a944a6275a

Conflicts:
	core/java/android/provider/Settings.java