Removing unnecessary R.java declaration for subpackages, to make gradle setup simpler

Removed:
  com.android.settingslib.restrictedlockutils
  com.android.settingslib.helputils
  com.android.keyguard

Moving sysui settings to use sysui settings resource package name

Test: Everything compiles / presubmit
Bug: 130289146
Change-Id: I5d760fa2f04439d24b455839f7bdd5cc499e840f