Revert of Add OBB mounter Mojo interface

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 668f978b8fa0bd089004d09ad9c5ab2008a4d856..37f67794a195d6649b9640c5d4f12f389fad60f4 100644
--- a/components/arc/common/arc_bridge.mojom
+++ b/components/arc/common/arc_bridge.mojom
@@ -15,7 +15,6 @@
 import "metrics.mojom";
 import "net.mojom";
 import "notifications.mojom";
-import "obb_mounter.mojom";
 import "policy.mojom";
 import "power.mojom";
 import "process.mojom";
@@ -23,9 +22,9 @@
 import "video.mojom";
 import "window_manager.mojom";
 
-// Next MinVersion: 14
+// Next MinVersion: 13
 // Deprecated method IDs: 101, 105
-// Next method ID: 120
+// Next method ID: 119
 interface ArcBridgeHost {
   // Keep the entries alphabetical. In order to do so without breaking
   // compatibility with the ARC instance, explicitly assign each interface a
@@ -66,9 +65,6 @@
   // Notifies Chrome that the NotificationsInstance interface is ready.
   OnNotificationsInstanceReady@102(NotificationsInstance instance_ptr);
 
-  // Notifies Chrome that the ObbMounter interface is ready.
-  [MinVersion=13] OnObbMounterInstanceReady@119(ObbMounterInstance instance_ptr);
-
   // Notifies Chrome that the PolicyInstance interface is ready.
   [MinVersion=7] OnPolicyInstanceReady@114(PolicyInstance instance_ptr);