Delete some unused code found by -Wunused-function

chrome/browser/webdata/keyword_table.cc

Index: chrome/browser/webdata/keyword_table.cc
diff --git a/chrome/browser/webdata/keyword_table.cc b/chrome/browser/webdata/keyword_table.cc
index 47d485216639f33faed44c592da86976e42e90d5..fd0cb029d3ea712f231f6fadefade100292c7940 100644
--- a/chrome/browser/webdata/keyword_table.cc
+++ b/chrome/browser/webdata/keyword_table.cc
@@ -101,17 +101,6 @@ void BindURLToStatement(const TemplateURLData& data,
   s->BindString(starting_column + 15, data.sync_guid);
 }
 
-// Signs search provider id and returns its signature.
-std::string GetSearchProviderIDSignature(int64 id) {
-  return protector::SignSetting(base::Int64ToString(id));
-}
-
-// Checks if signature for search provider id is correct and returns the
-// result.
-bool IsSearchProviderIDValid(int64 id, const std::string& signature) {
-  return protector::IsSettingValid(base::Int64ToString(id), signature);
-}
-
 }  // anonymous namespace
 
 KeywordTable::KeywordTable(sql::Connection* db, sql::MetaTable* meta_table)