Fix accessibility issues in Emergency Dialer

Remove unneeded onHover override in EmergencyDialer. It uses
DialpadKeyButton now which has hover handling code built in, so both
events were conflicting with each other.

Set up pressed handlers correctly in EmergencyDialer

Accessibility-wise, the emergency dialpad now behaves similarly to
Dialer's dialpad

Bug: 16714451
Change-Id: I6d2fdc2d2fec72f4af7169c67fd2b0c7a8401a2c
1 file changed