[1/2] android: Remove Voice Dialer

- From my experience, this does not work on the majority of the devices and I don't know
of one person that uses this. This was a useful app prior to apps like Google NOW and also
for cdma uses to access their APNs but that's no longer the case.

Change-Id: I3fe1ce914a800063ea3ab49e0b4d1129e0749ae6