Revert "Add androidX 1.0.0 support lib side prebuilts."

This reverts commit b24394bda899cbc243c2200573c21a3fd606e0f4.

We no longer need these local prebuilts as we are switching to real
prebuilts from a build server.

Test: None
948 files changed
tree: 8939c349379de27f4c32827ad0cb44d41ceca0f7
  1. android/
  2. androidx/
  3. com/
  4. NOTICE.txt
  5. source.properties