Remove search::GetSearchTerms since it always returns empty string

components/toolbar/test_toolbar_model.cc

Index: components/toolbar/test_toolbar_model.cc
diff --git a/components/toolbar/test_toolbar_model.cc b/components/toolbar/test_toolbar_model.cc
index 6ad5b94d501cdbeb46baaae3191c8f24c020cd0a..d9f65fc9c83bb37f2289f4e53f7802602f1ab6b2 100644
--- a/components/toolbar/test_toolbar_model.cc
+++ b/components/toolbar/test_toolbar_model.cc
@@ -8,8 +8,7 @@
 #include "ui/gfx/vector_icons_public.h"
 
 TestToolbarModel::TestToolbarModel()
-    : perform_search_term_replacement_(false),
-      security_level_(security_state::SecurityStateModel::NONE),
+    : security_level_(security_state::SecurityStateModel::NONE),
 #if defined(TOOLKIT_VIEWS)
       icon_(gfx::VectorIconId::LOCATION_BAR_HTTP),
 #else
@@ -32,11 +31,6 @@ GURL TestToolbarModel::GetURL() const {
   return url_;
 }
 
-bool TestToolbarModel::WouldPerformSearchTermReplacement(
-    bool ignore_editing) const {
-  return perform_search_term_replacement_;
-}
-
 security_state::SecurityStateModel::SecurityLevel
 TestToolbarModel::GetSecurityLevel(bool ignore_editing) const {
   return security_level_;