[css-syntax] Unnecessary intro to an algo.

Author: tabatkins

css-syntax/Overview.bs

@@ -1285,8 +1285,6 @@ Consume a url token</h4>
 
 	Note: This algorithm assumes that the initial "url(" has already been consumed.
 
-	Execute the following steps in order:
-
 	<ol>
 		<li>
 			Initially create a <<url-token>> with its value set to the empty string.

css-syntax/Overview.html

@@ -2377,8 +2377,6 @@ <h4 class="heading settled heading" data-level=4.3.6 id=consume-a-url-token><spa
 
 <p class=note>Note: This algorithm assumes that the initial "url(" has already been consumed.</p>
 
-<p>Execute the following steps in order:</p>
-
 	<ol>
 		<li>
 			Initially create a <a class="production css-code" data-link-type=type href=#typedef-url-token title="<url-token>">&lt;url-token&gt;</a> with its value set to the empty string.