Remove omnibox_search_hint.(cc,h).

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 6c7a26e0eb412999608ad3e39854275a540d31f7..042b8c741144bc8e60ad8040920612cf9269d373 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -1242,10 +1242,6 @@ const char kScriptBadges[]                  = "script-badges";
 // many extensions are running scripts on a page.
 const char kScriptBubble[]                  = "script-bubble";
 
-// Enables the showing of an info-bar instructing user they can search directly
-// from the omnibox.
-const char kSearchInOmniboxHint[]           = "search-in-omnibox-hint";
-
 // Causes the process to run as a service process.
 const char kServiceProcess[]                = "service";