Quick Settings: Avoid expand indicators shortly showing on edit

 * Upon entering of the Quick Settings edit view, during
    the animation, all the expand indicators are rarely
    visible for a short period of time until hidden

 * To avoid this visual glitch, hide the expand_indicator
    by default and let the code show it when necessary
    instead of hiding it for most cases

Change-Id: Ia14d9a8d63178ccb54fbcb969ddf51f06c88f35c
Signed-off-by: Adrian DC <radian.dc@gmail.com>