Revert "AVDs for a wide range of devices, and started entering new devices into the devices.xml file"

This reverts commit 864dcecc519ac24b7bf6f0e72273af69223d7aa5.
Revert "Moving AVD and ini files to AVD folder"

This reverts commit 15ada9e90885c957c1b36a8449aba63af0bc77c3.
remove avd subproject