Revert 42366 - Allow TabContentsDelegate classes to specify whether InfoBars ...

chrome/browser/tab_contents/tab_contents_delegate.h

Index: chrome/browser/tab_contents/tab_contents_delegate.h
===================================================================
--- chrome/browser/tab_contents/tab_contents_delegate.h	(revision 42377)
+++ chrome/browser/tab_contents/tab_contents_delegate.h	(working copy)
@@ -283,9 +283,6 @@
   // typically happens when popups are created.
   virtual void TabContentsCreated(TabContents* new_contents) {}
 
-  // Returns whether infobars are enabled. Overrideable by child classes.
-  virtual bool infobars_enabled() { return true; }
-
  protected:
   ~TabContentsDelegate() {}
 };