Revert of Host-side implementation of ARC Intent handler

components/arc/common/arc_bridge.mojom

Index: components/arc/common/arc_bridge.mojom
diff --git a/components/arc/common/arc_bridge.mojom b/components/arc/common/arc_bridge.mojom
index c3c837d5a2e96b9d435c12e3ce7fb04e3968fc0d..4e38413702d629ab04e4020d725ac4dac0491872 100644
--- a/components/arc/common/arc_bridge.mojom
+++ b/components/arc/common/arc_bridge.mojom
@@ -9,7 +9,6 @@
 import "clipboard.mojom";
 import "ime.mojom";
 import "input.mojom";
-import "intent_helper.mojom";
 import "notifications.mojom";
 import "power.mojom";
 import "process.mojom";
@@ -36,10 +35,6 @@
   // Notifies Chrome that the InputInstnace interface is ready.
   OnInputInstanceReady@101(InputInstance instance_ptr);
 
-  // Notifies Chrome that the IntentHelpernstnace interface is ready.
-  [MinVersion=4] OnIntentHelperInstanceReady@111(
-      IntentHelperInstance instance_ptr);
-
   // Notifies Chrome that the NotificationsInstance interface is ready.
   OnNotificationsInstanceReady@102(NotificationsInstance instance_ptr);