travis: utf-error.stderr: remove unnecessary error message
travis: utf-error.stderr: remove unnecessary error message

The error message "comma expected after operand 2" no longer
occurs in this program, this is an acceptable divergence, however.

Signed-off-by: H. Peter Anvin (Intel) <8a453bad9912ffe59bc0f0b8abe03df9be19379e@zytor.com>

techkey/nasm,techkey/nasm,techkey/nasm,techkey/nasm,techkey/nasm