[css-syntax] Redundant step in consume url token algo

[Wes1262]

I'm not entirely sure, but I think... in section 4.3.6 the step 3:

3. If the next input code point is EOF, this is a parse error. Return the <url-token>.

Is redundant with the step in the loop (4):

EOF
This is a parse error. Return the <url-token>.

I suggest step (3) to be removed as it's already covered by the loop.

[tabatkins]

Yes, it's redundant. (It's possible it wasn't previously; I know I've tweaked this section before.)