[2/2] build: 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: Ib74f8987d0fe68d8798c7ba64bcddcdae574876c