Delete call of method 'drawToCanvas()'

Custom lockscreen

This commit Re-committed by @Namja in Triangles

Accessible via launcher wallpaper selector and
Settings - Display - Wallpaper - Lock screen

Change-Id: I2e4722d1a6d4ba80a3c656306ceb251d630a8e21

Conflicts:
	packages/Keyguard/src/com/android/keyguard/KeyguardViewManager.java
	packages/WallpaperCropper/AndroidManifest.xml

Keyguard: Add instanted class: Context context

Change-Id: I28fe1f4e3ec091f55294213bbbc5d22dacacab9e

Revert "Keyguard: Add instanted class: Context context"

This reverts commit 868f1bd0b05df08317f04fe598f6207096861e17.

Revert "Custom lockscreen"

This reverts commit 1c689c3af0ea6d58b009e1bdd9b8f6d16435cca3.