Remove single clock view

We can use the mInfinite flag in the carousel to handle single clock
case.
When clock faces are less than 5, we will force the clock carousel
finite.

Test: See screeshot in bug. Also made sure for clock faces >= 5, the
Test: carousel is infinite again.
Bug: 290848550
Bug: 287650278
Change-Id: I1f0d9810ee5b92efc9cfacdfe2c70c6627916628