[FM] The channel name will not disappear on the main screen after deleting a...

[FM] The channel name will not disappear on the main screen after deleting a channel from the Favorites

Enter FM radio -> Tap star icon to add the channel in
the Favorites -> Rename the channel -> Tap star icon
to delete a channel from the Favorites -> Check the name
on the main screen, the channel name will not disappear.

The CL is to fix this issue.

Bug 18847141

from: https://partner-android-review.googlesource.com/#/c/192388/1



Change-Id: Ia8331caa460f3bf0036c3470705e37d8aaf14e5a
Signed-off-by: Benson Huang <benson.huang@mediatek.com>