Remove support and tests for HSTS priming from the tree. Fixes #384

dom/security/nsContentSecurityManager.cpp

@@ -8,8 +8,6 @@
 #include "nsContentUtils.h"
 #include "nsCORSListenerProxy.h"
 #include "nsIStreamListener.h"
-#include "nsIDocument.h"
-#include "nsMixedContentBlocker.h"
 #include "nsCDefaultURIFixup.h"
 #include "nsIURIFixup.h"
 
@@ -507,13 +505,6 @@ DoContentSecurityChecks(nsIChannel* aChannel, nsILoadInfo* aLoadInfo)
     return NS_ERROR_CONTENT_BLOCKED;
   }
 
-  if (nsMixedContentBlocker::sSendHSTSPriming) {
-    rv = nsMixedContentBlocker::MarkLoadInfoForPriming(uri,
-                                                       requestingContext,
-                                                       aLoadInfo);
-    return rv;
-  }
-
   return NS_OK;
 }