SnapdragonCamera: Fix crash during UI stress test

CaptureModule and CaptureUI have register listeners in
SettingsManager, but forget unregiseter when UI destroy.
This makes the too many RenderNode objects exist and never GC.
At last, the weak reference of RenderNode at native layer exceed
the 51200 limitation and crash.
Unregister the listener of SettingsManager will fix it.

Change-Id: I881b47f8f062c366e028db59a8cf6983c1d99f5a
CRs-Fixed: 1103907
1 file changed