Revert "Export proguard.flags, manifest and sources for use by S..."

Revert submission 13183140-SettingsGoogle-bp

Reason for revert: b/177766209
Reverted Changes:
I73bef76ec:Add ArcSettings and SettingsGoogle to the legacy a...
I385629c5c:Build Settings-robo-testutils for use by SettingsG...
I863e1d658:Convert ArcSettings to Android.bp
If095bc39d:Convert SettingsGoogleRoboTests to Android.bp
I8d3f32cd4:Convert SettingsGoogle tests to Android.bp
I7ddeb985c:Convert SettingsGoogle to Android.bp
I3b8223e64:Export elmyra and columbus aidl files for Settings...
I3d2f042a9:Export proguard.flags, manifest and sources for us...

Change-Id: I9da85caeb3a53cf7ac3216c4b34985423b997fd2