[PATCH] Remove gcc.dg/vect/costmodel/x86_64/costmodel-pr68961.c

[Richard Biener]

I forgot to remove this (now FAILing) testcase after the 
fwprop/simplify-rtx fix.

Committed.

2016-07-27  Richard Biener  <rguent...@suse.de>

        * gcc.dg/vect/costmodel/x86_64/costmodel-pr68961.c: Remove.