Remove device from send_tab_to_self proto

The device ID and Name are not wanted for the send tab workflow

Bug: 910390
Change-Id: I27a4808366a38cd91283c76a0b361d61216b3fde
Reviewed-on: https://chromium-review.googlesource.com/c/1372537Reviewed-by: Ryan Hansberry <hansberry@chromium.org>
Reviewed-by: Mikel Astiz <mastiz@chromium.org>
Commit-Queue: Jeffrey Cohen <jeffreycohen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#616000}

components/sync/protocol/proto_visitors.h

@@ -742,12 +742,6 @@ VISIT_PROTO_FIELDS(const sync_pb::SendTabToSelfSpecifics& proto) {
   VISIT(title);
   VISIT(url);
   VISIT(shared_time_usec);
-  VISIT(from_device);
-}
-
-VISIT_PROTO_FIELDS(const sync_pb::SendTabToSelfDevice& proto) {
-  VISIT(name);
-  VISIT(signin_scoped_device_id);
 }
 
 VISIT_PROTO_FIELDS(const sync_pb::SessionHeader& proto) {

components/sync/protocol/send_tab_to_self_specifics.proto

@@ -25,13 +25,5 @@ message SendTabToSelfSpecifics {
   // the windows epoch.
   // Required
   optional int64 shared_time_usec = 3;
-  // The device where this tab originated.
-  optional SendTabToSelfDevice from_device = 4;
 }
 
-message SendTabToSelfDevice {
-  // A non-unique but human readable name to describe this client, used in UI.
-  optional string name = 1;
-  // Device_id that is stable until user signs out to avoid round tripping.
-  optional string signin_scoped_device_id = 2;
-}