SeeThrough: Revert, Theme Engine brings custom backgroung for lockscreen

Will add this as a component for Theme Engine later

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Revert "Fix: Lockscreen Blur Rotation"

This reverts commit 4dcc408182ccf0af8b2f82eedee37006e33105c9.

Revert "Fix possible NPE"

This reverts commit 09fc52b97154b12f15d275b2e7719a5bd0cee2f3.

Revert "Fix: onBoot brightness"

This reverts commit ac76b0cedc3af438f0dfda1cb0c21d62d833a72f.

Revert "Frameworks: Lockscreen Blur"

This reverts commit 2c027bfd3e51b488daf0e8be59546d47e8ffcfb2.

Revert "Fix: Correct possible null pointer when enabling see through lockscreen"

This reverts commit 5aeaeb938474b06d5e6fe2c937c68ce66bace984.

Revert "Fix: Ensure lockscreen see through setting persists after reboot"

This reverts commit f5060d6fa699125f965d2169dc8d9846153d5045.

Revert "Revert "Lockscreen Blur""

This reverts commit dc82b58247e4946acd8ae497a65fd79b0b61ebb9.

Revert "Fix code style"

This reverts commit a9239df8a74b99edfc383253fdbf7675a0d48ee5.

Revert "Lockscreen Blur"

This reverts commit 19d74a97359235f0087e4cf4d9d03932b6cec485.

Revert "Lockscreen: See through (1/2)"

This reverts commit 7ff7711b1e348d36f88f3507dfaba70dd6dbb95a.

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

Conflicts:
	core/java/android/provider/Settings.java
	packages/Keyguard/src/com/android/keyguard/KeyguardViewManager.java
	packages/Keyguard/src/com/android/keyguard/KeyguardViewMediator.java
	services/java/com/android/server/power/DisplayPowerController.java
	services/java/com/android/server/wm/WindowAnimator.java