Remove bogus test line from vect-over-widen-23.c

I'd cut-&-paste vect-over-widen-23.c in an attempt to get the target
reuirements right, but by doing so carried over an unwanted test for
shifts.

2018-12-06  Richard Sandiford  <richard.sandiford@arm.com>

gcc/testsuite/
	* gcc.dg/vect/vect-over-widen-23.c: Remove unwanted line.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@266861 138bc75d-0d04-0410-961f-82ee72b054a4
2 files changed