refactor: remove vendored Go repos, keep only .proto files

wfe-containerd-protos/proto/api/services/mounts/v1/mounts.proto

@@ -0,0 +1,77 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+syntax = "proto3";
+
+package containerd.services.mounts.v1;
+
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+import "types/mount.proto";
+
+option go_package = "github.com/containerd/containerd/api/services/mounts/v1;mounts";
+
+// Mounts service manages mounts
+service Mounts {
+  rpc Activate(ActivateRequest) returns (ActivateResponse);
+  rpc Deactivate(DeactivateRequest) returns (google.protobuf.Empty);
+  rpc Info(InfoRequest) returns (InfoResponse);
+  rpc Update(UpdateRequest) returns (UpdateResponse);
+  rpc List(ListRequest) returns (stream ListMessage);
+}
+
+message ActivateRequest {
+  string name = 1;
+
+  repeated containerd.types.Mount mounts = 2;
+
+  map<string, string> labels = 3;
+
+  bool temporary = 4;
+}
+
+message ActivateResponse {
+  containerd.types.ActivationInfo info = 1;
+}
+
+message DeactivateRequest {
+  string name = 1;
+}
+
+message InfoRequest {
+  string name = 1;
+}
+
+message InfoResponse {
+  containerd.types.ActivationInfo info = 1;
+}
+
+message UpdateRequest {
+  containerd.types.ActivationInfo info = 1;
+
+  google.protobuf.FieldMask update_mask = 2;
+}
+
+message UpdateResponse {
+  containerd.types.ActivationInfo info = 1;
+}
+
+message ListRequest {
+  repeated string filters = 1;
+}
+
+message ListMessage {
+  containerd.types.ActivationInfo info = 1;
+}