pkg/csslib: Remove a number of unused members, prepare for release

lib/parser.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library csslib.parser;
 
 import 'dart:math' as math;
 
 import 'package:source_span/source_span.dart';
 
@@ skipping 282 matching lines @@
       return false;
     }
   }
 
   void _eat(int kind, {unicodeRange: false}) {
     if (!_maybeEat(kind, unicodeRange: unicodeRange)) {
       _errorExpected(TokenKind.kindToString(kind));
     }
   }
 
-  void _eatSemicolon() {
-    _eat(TokenKind.SEMICOLON);
-  }
-
   void _errorExpected(String expected) {
     var tok = _next();
     var message;
     try {
       message = 'expected $expected, but found $tok';
     } catch (e) {
       message = 'parsing error expected $expected';
     }
     _error(message, tok.span);
   }
@@ skipping 2373 matching lines @@
 
     if (replace != null && result == null) {
       result = new StringBuffer(text.substring(0, i));
     }
 
     if (result != null) result.write(replace != null ? replace : text[i]);
   }
 
   return result == null ? text : result.toString();
 }