Remove unnecessary case in fits_in_uint_helper

The width == 1 case in this switch statement was left over from when booleans
were stored as uint(1)s, which is not relevant as of my boolean immediate size
work on June 17th.  I think I missed this case because it didn't involve an
immediate directly.
Merge pull request #569 from lydia-duncan/removeCompilerUint1Case

Remove unnecessary case in fits_in_uint_helper [reviewed by bradc]

The width == 1 case in this switch statement was left over from when booleans
were stored as uint(1)s, which is not relevant as of my boolean immediate size
work on June 17th. I think I missed this case because it didn't involve an
immediate directly.