Attempt to make \b\w+ faster. Slight performance increase on, e.g., string unpacking.

src/regexp-macro-assembler.h

Index: src/regexp-macro-assembler.h
diff --git a/src/regexp-macro-assembler.h b/src/regexp-macro-assembler.h
index aa01096d28edadb4138e4dddd0cade2345d6a437..7cc95110e39143754fac9a3c0c74e772ae1ee899 100644
--- a/src/regexp-macro-assembler.h
+++ b/src/regexp-macro-assembler.h
@@ -123,8 +123,6 @@ class RegExpMacroAssembler {
   // not have custom support.
   // May clobber the current loaded character.
   virtual bool CheckSpecialCharacterClass(uc16 type,
-                                          int cp_offset,
-                                          bool check_offset,
                                           Label* on_no_match) {
     return false;
   }