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

    [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 the issue that gjalan reproduced.

    Bug 18847141

    Review: https://partner-android-review.git.corp.google.com/#/c/192521



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

Change-Id: Ib5339c1e956981bdbcff74767b5c422d2e4fcf8b