Revert "UsbSettings: Add UMS mode support"

This reverts commit 650a8551b1bc2e8381195808eb0877b1975c42ae.

Change-Id: I39c13931e271e7b67d7f7df8f76861797bf07a79
lights: fix notification and attention lights

- Turn off attention light in pulse rather than
  just turning flashing off.  This was causing
  the LED to be left on for any HAL that obeys
  the concept of LIGHT_FLASH_NONE.  Most HALs
  will either treat this as OFF, or have special
  handling for the attention LED case where
  it was getting left on.
- Remove some unnecessary code in Light

Change-Id: I36292ae0d57e0454d7c9f1d3c909a87affeaf7d2
Pass all theme apks to themeservice for processing

3rd party apps expect ACTION_THEME_RESOURCES_CACHED once a theme is installed
regardless of the contents of the theme.

Previously only packages with overlays were passed to the themeservice
for resource processing. The result was packages without overlays would
install and ACTION_THEME_RESOURCES_CACHED would never be broadcasted.

Change-Id: I7cf3f8267805ef2a0626b2690b708e7bbae46bcc
MediaScanner : Add support for default ringtones per sim

Change-Id: I1ed112a38d2b3676e31a78eb70ea0e16a3957b02
ums: support UMS on any volume

Change-Id: I43668a5200d30cef953e0d3e9ded2d8cf0cbbd22
Vectone UK (MNC01) considered non-roaming on T-Mobile (MNC30)

Change-Id: Id74c854f958be721be12451a124cfd2f8b150255