HOVER: Fix a couple of things:

- Handle Ticker properly. Update mTicking, call related statements
  and disable ticker for blacklisted apps only when hover is off.
- Remove a bad patch when you release your finger, there is no need and
  along with showCurrentNotification() call at setNotification() can even
  be a bad call.
- Notification removal is already done at BaseStatusBar. Remove useless code.

AICPfy
Fix statusbar not updating (ticker issue) with halo enabled

Change-Id: Ia0c55ad6c82b05bbf1933f748178ff7a2981bb4c
Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>