Delete BaseIDevicePolicyManager.java

BaseIDevicePolicyManager.java was extended by ArcDevicePolicyManagerWrapperService and DevicePolicyManagerService.
But since we redesign ArcDevicePolicyManagerWrapperService to extend DevicePolicyManagerService we no longer need BaseIDevicePolicyManager.
Design Doc: http://doc/1rGmymvoKZCn3H2Gbic5cnlgyZJo8ZtlgDzX5o0sG4zE

Bug: 187842408
Test: m
Change-Id: Ia50909703ad855af4c4567b805149085bbace411
(cherry picked from commit e41a6ec05d7488602fa841d99960353b856e5e75)
1 file changed