[css-syntax] Remove 'code point' and 'surrogate code point' in favor of the identical Infra definitions. Fixes w3c#736.

Author: tabatkins

css-syntax/Overview.bs

@@ -720,11 +720,6 @@ Definitions</h3>
 	This section defines several terms used during the tokenization phase.
 
 	<dl export>
-		<dt><dfn>code point</dfn>
-		<dd>
-			A <a href="http://unicode.org/glossary/#code_point">Unicode code point</a>. [[!UNICODE]]
-			Any value in the Unicode codespace; that is, the range of integers from 0 to (hexadecimal) 10FFFF.
-
 		<dt><dfn>next input code point</dfn>
 		<dd>
 			The first <a>code point</a> in the <a>input stream</a> that has not yet been consumed.
@@ -802,10 +797,6 @@ Definitions</h3>
 		<dt><dfn export>whitespace</dfn>
 		<dd>A <a>newline</a>, U+0009 CHARACTER TABULATION, or U+0020 SPACE.
 
-		<dt><dfn export>surrogate code point</dfn>
-		<dd>
-			A <a>code point</a> between U+D800 and U+DFFF inclusive.
-
 		<dt><dfn export>maximum allowed code point</dfn>
 		<dd>The greatest <a>code point</a> defined by Unicode: U+10FFFF.
 
@@ -1292,7 +1283,7 @@ Consume an escaped code point</h4>
 			consume it as well.
 			Interpret the <a>hex digits</a> as a hexadecimal number.
 			If this number is zero,
-			or is for a <a>surrogate code point</a>,
+			or is for a <a>surrogate</a>,
 			or is greater than the <a>maximum allowed code point</a>,
 			return U+FFFD REPLACEMENT CHARACTER (�).
 			Otherwise, return the <a>code point</a> with that value.
@@ -3562,7 +3553,7 @@ Changes from CSS 2.1 and Selectors Level 3</h3>
 			per WG resolution.
 
 		<li>
-			Hexadecimal escape for <a>surrogate code points</a> now emit a replacement character rather than the surrogate.
+			Hexadecimal escape for <a>surrogate</a> now emit a replacement character rather than the surrogate.
 			This allows implementations to safely use UTF-16 internally.
 
 	</ul>