vibrator: Remove trigger effect support

In the previous projects, only edge sensor
used this trigger effect.
However, edge sensor did not involve in this project,
we decide to remove trigger effect support.

Bug: 148838005
Test: print registers' value in suspend mode
Change-Id: I27d7c2419f77a3ddba71776c35b3de20c29af016
Signed-off-by: chasewu <chasewu@google.com>