Remove some wallpapers (There are many wallpaper apps in market) and fix some settings

Change-Id: If6cba8c2cd44beadd9991e216c3e68978f8d9024
Preferences: Infinite/Loop homescreen scrolling

Change-Id: I4b496e0d906bb8cb9531b8a7bb28d2b8b5de5f63
Not sure if changing private variable to protected in PagedView
is acceptable or not.
Don't join with widgets while scrolling

Change-Id: Ibce078c145159132ad76cc0c3ca98b7fe6d7f41d
Turn on Resize any Widgets by default

Change-Id: I83b0b545f399a41b92b807d5a0dff53d9599fe09
Turn Off Search Bar by Default

Change-Id: If79804e6656d15fbcdeb0b61adb2a457c69e4405
Delete some wallpapers have visual artifacts to reduce launcher size

Change-Id: I997825434e8a5d7d78afb5f1802a3082dc9f9b5b