am 31113a7c: am aca60805: am 25f8bdf4: partial revert "Support xxxhdpi icons & delete unused icons"

* commit '31113a7c46d8f056f246e25ed0e713f4b4663767':
  partial revert "Support xxxhdpi icons & delete unused icons"
tree: dc434538e77fbf6e14f1b463585af4a945f11183
  1. res-common/
  2. src/
  3. tests/