Discard changes to stdlib/public/Concurrency/Executor.swift (#74859)

Author: ktoso

stdlib/public/Concurrency/Executor.swift

@@ -242,6 +242,7 @@ public protocol TaskExecutor: Executor {
   // avoid drilling down to the base conformance just for the basic
   // work-scheduling operation.
   @_nonoverride
+  @available(*, deprecated, message: "Implement 'enqueue(_: consuming ExecutorJob)' instead")
   func enqueue(_ job: consuming Job)
   #endif // !SWIFT_STDLIB_TASK_TO_THREAD_MODEL_CONCURRENCY
 
@@ -519,7 +520,6 @@ where E: SerialExecutor {
   #endif // !SWIFT_STDLIB_TASK_TO_THREAD_MODEL_CONCURRENCY
 }
 
-/// Used by Swift Concurrency runtime to call into a task executor's `enqueue`.
 @_unavailableInEmbedded
 @available(SwiftStdlib 6.0, *)
 @_silgen_name("_swift_task_enqueueOnTaskExecutor")