Revert "Hover: disallow notfications from currently active app"

This reverts commit 285d21149835d78c6ef9573172e1c453459fc8b0.
Hover settings (1/2)

- Require full screen mode;
- Hide non-clearable;
- Exclude low priority;

Original commits
https://github.com/TheKang/frameworks_base/commit/598fa9d46e84b563d9ec6ffa75a38da9fc3cc5a9
https://github.com/TheKang/frameworks_base/commit/a3b44ef4fce7cdabc477075ac646b596dc0f83a4

Thanks @Der-Schubi

Change-Id: If3c34496acf75d49434902c49dfe48f997c0b668

Conflicts:
	core/java/android/provider/Settings.java
Hover notification timeout (1/2)

Allow user to set how much time the hover notification will stay visisible without touch the screen

Change-Id: I5847adb3f33522d9d78867685f9867477542c37e
Remove lockscreen slide delay option (2/2)

Also enable this option for insecure lockscreen:
* Power button instantly locks

Change-Id: Ibf93519637e0c08bad5d2224c3f76c99b0af60f7
Fix for default USB debugging in eng builds.

* Start adbd on first launch and accept all connections for eng
* Start adbd on first launch and prompt for userdebug
* Do not start adbd for user.

Change-Id: I26d1ef1bb208cec79d45687aea833a1b3e076b83