[css-flexbox] Simplify example, now that the default is min-width:min-content.

Author: tabatkins

css-flexbox/Overview.bs

@@ -1524,12 +1524,12 @@ The 'flex' Shorthand</h3>
 				<dt><dfn>content</dfn>
 				<dd>
 					Indicates automatic sizing, based on the <a>flex item</a>’s content.
-		
+
 					Note: This value was not present in the initial release of Flexible Box Layout,
 					and thus some older implementations will not support it.
 					The equivalent effect can be achieved by using ''flex/auto''
 					together with a main size ('width' or 'height') of ''width/auto''.
-		
+
 				<dt><<'width'>>
 				<dd>
 					For all other values,
@@ -1780,10 +1780,6 @@ Aligning with <a value for=margin>auto</a> margins</h3>
 			nav > ul {
 				display: flex;
 			}
-			nav > ul > li {
-				min-width: min-content;
-				/* Prevent items from getting too small for their content. */
-			}
 			nav > ul > #login {
 				margin-left: auto;
 			}