Remove some dead code from inspector/

Source/core/inspector/ContentSearchUtils.h

Index: Source/core/inspector/ContentSearchUtils.h
diff --git a/Source/core/inspector/ContentSearchUtils.h b/Source/core/inspector/ContentSearchUtils.h
index 4ede1afb61a31ef1b0982e3eb0a2a57bdb16b45c..4b8bfb5567029469a2df52570ec21d19c269d3fe 100644
--- a/Source/core/inspector/ContentSearchUtils.h
+++ b/Source/core/inspector/ContentSearchUtils.h
@@ -47,7 +47,6 @@ enum MagicCommentType {
 };
 
 PassOwnPtr<ScriptRegexp> createSearchRegex(const String& query, bool caseSensitive, bool isRegex);
-int countScriptRegexpMatches(const ScriptRegexp*, const String&);
 PassRefPtr<TypeBuilder::Array<TypeBuilder::Page::SearchMatch> > searchInTextByLines(const String& text, const String& query, const bool caseSensitive, const bool isRegex);
 
 String findSourceURL(const String& content, MagicCommentType, bool* deprecated);