diff --git a/google/cloud/tasks/v2beta2/cloudtasks.proto b/google/cloud/tasks/v2beta2/cloudtasks.proto
index a1d27d749d..b33a8fcbc7 100644
--- a/google/cloud/tasks/v2beta2/cloudtasks.proto
+++ b/google/cloud/tasks/v2beta2/cloudtasks.proto
@@ -414,25 +414,6 @@ service CloudTasks {
     };
     option (google.api.method_signature) = "name";
   }
-
-  // Creates and buffers a new task without the need to explicitly define a Task
-  // message. The queue must have [HTTP
-  // target][google.cloud.tasks.v2beta2.HttpTarget]. To create the task with a
-  // custom ID, use the following format and set TASK_ID to your desired ID:
-  // projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID/tasks/TASK_ID:buffer
-  // To create the task with an automatically generated ID, use the following
-  // format:
-  // projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID/tasks:buffer.
-  // Note: This feature is in its experimental stage. You must request access to
-  // the API through the [Cloud Tasks BufferTask Experiment Signup
-  // form](https://forms.gle/X8Zr5hiXH5tTGFqh8).
-  rpc BufferTask(BufferTaskRequest) returns (BufferTaskResponse) {
-    option (google.api.http) = {
-      post: "/v2beta2/{queue=projects/*/locations/*/queues/*}/tasks/{task_id}:buffer"
-      body: "*"
-    };
-    option (google.api.method_signature) = "queue,task_id,body";
-  }
 }
 
 // Request message for
@@ -1028,36 +1009,3 @@ message RunTaskRequest {
   // [Task][google.cloud.tasks.v2beta2.Task] resource.
   Task.View response_view = 2;
 }
-
-// LINT.IfChange
-// Request message for
-// [BufferTask][google.cloud.tasks.v2beta2.CloudTasks.BufferTask].
-message BufferTaskRequest {
-  // Required. The parent queue name. For example:
-  // projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID`
-  //
-  // The queue must already exist.
-  string queue = 1 [
-    (google.api.field_behavior) = REQUIRED,
-    (google.api.resource_reference) = {
-      child_type: "cloudtasks.googleapis.com/Task"
-    }
-  ];
-
-  // Optional. Task ID for the task being created. If not provided, a random
-  // task ID is assigned to the task.
-  string task_id = 2 [(google.api.field_behavior) = OPTIONAL];
-
-  // Optional. Body of the HTTP request.
-  //
-  // The body can take any generic value. The value is written to the
-  // [HttpRequest][payload] of the [Task].
-  google.api.HttpBody body = 3 [(google.api.field_behavior) = OPTIONAL];
-}
-
-// Response message for
-// [BufferTask][google.cloud.tasks.v2beta2.CloudTasks.BufferTask].
-message BufferTaskResponse {
-  // The created task.
-  Task task = 1;
-}
diff --git a/google/cloud/tasks/v2beta3/cloudtasks.proto b/google/cloud/tasks/v2beta3/cloudtasks.proto
index 80671c12f8..232d9e9bdb 100644
--- a/google/cloud/tasks/v2beta3/cloudtasks.proto
+++ b/google/cloud/tasks/v2beta3/cloudtasks.proto
@@ -19,7 +19,6 @@ package google.cloud.tasks.v2beta3;
 import "google/api/annotations.proto";
 import "google/api/client.proto";
 import "google/api/field_behavior.proto";
-import "google/api/httpbody.proto";
 import "google/api/resource.proto";
 import "google/cloud/tasks/v2beta3/queue.proto";
 import "google/cloud/tasks/v2beta3/task.proto";
@@ -313,25 +312,6 @@ service CloudTasks {
     };
     option (google.api.method_signature) = "name";
   }
-
-  // Creates and buffers a new task without the need to explicitly define a Task
-  // message. The queue must have [HTTP
-  // target][google.cloud.tasks.v2beta3.HttpTarget]. To create the task with a
-  // custom ID, use the following format and set TASK_ID to your desired ID:
-  // projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID/tasks/TASK_ID:buffer
-  // To create the task with an automatically generated ID, use the following
-  // format:
-  // projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID/tasks:buffer.
-  // Note: This feature is in its experimental stage. You must request access to
-  // the API through the [Cloud Tasks BufferTask Experiment Signup
-  // form](https://forms.gle/X8Zr5hiXH5tTGFqh8).
-  rpc BufferTask(BufferTaskRequest) returns (BufferTaskResponse) {
-    option (google.api.http) = {
-      post: "/v2beta3/{queue=projects/*/locations/*/queues/*}/tasks/{task_id}:buffer"
-      body: "*"
-    };
-    option (google.api.method_signature) = "queue,task_id,body";
-  }
 }
 
 // Request message for
@@ -714,35 +694,3 @@ message RunTaskRequest {
   // [Task][google.cloud.tasks.v2beta3.Task] resource.
   Task.View response_view = 2;
 }
-
-// Request message for
-// [BufferTask][google.cloud.tasks.v2beta3.CloudTasks.BufferTask].
-message BufferTaskRequest {
-  // Required. The parent queue name. For example:
-  // projects/PROJECT_ID/locations/LOCATION_ID/queues/QUEUE_ID`
-  //
-  // The queue must already exist.
-  string queue = 1 [
-    (google.api.field_behavior) = REQUIRED,
-    (google.api.resource_reference) = {
-      child_type: "cloudtasks.googleapis.com/Task"
-    }
-  ];
-
-  // Optional. Task ID for the task being created. If not provided, a random
-  // task ID is assigned to the task.
-  string task_id = 2 [(google.api.field_behavior) = OPTIONAL];
-
-  // Optional. Body of the HTTP request.
-  //
-  // The body can take any generic value. The value is written to the
-  // [HttpRequest][payload] of the [Task].
-  google.api.HttpBody body = 3 [(google.api.field_behavior) = OPTIONAL];
-}
-
-// Response message for
-// [BufferTask][google.cloud.tasks.v2beta3.CloudTasks.BufferTask].
-message BufferTaskResponse {
-  // The created task.
-  Task task = 1;
-}