Clean up MEDIA_DEVICE_NAME_FIX flag

Test: atest MediaDataManagerTest
Fixes: 304506662
Fixes: 290213117
Fixes: 280426984
Flag: LEGACY MEDIA_DEVICE_NAME_FIX NEXT

Change-Id: Iaf67889de74936c6165da3e659f57c2f787b506f
3 files changed