Deprecate for removal redundant Delay method (#2979)

Author: qwwdfsad

kotlinx-coroutines-core/common/src/Delay.kt

@@ -19,15 +19,12 @@ import kotlin.time.*
  */
 @InternalCoroutinesApi
 public interface Delay {
-    /**
-     * Delays coroutine for a given time without blocking a thread and resumes it after a specified time.
-     *
-     * This suspending function is cancellable.
-     * If the [Job] of the current coroutine is cancelled or completed while this suspending function is waiting, this function
-     * immediately resumes with [CancellationException].
-     * There is a **prompt cancellation guarantee**. If the job was cancelled while this function was
-     * suspended, it will not resume successfully. See [suspendCancellableCoroutine] documentation for low-level details.
-     */
+
+    /** @suppress **/
+    @Deprecated(
+        message = "Deprecated without replacement as an internal method never intended for public use",
+        level = DeprecationLevel.ERROR
+    ) // Error since 1.6.0
     public suspend fun delay(time: Long) {
         if (time <= 0) return // don't delay
         return suspendCancellableCoroutine { scheduleResumeAfterDelay(time, it) }

ui/kotlinx-coroutines-javafx/src/JavaFxDispatcher.kt

@@ -10,7 +10,6 @@ import javafx.event.*
 import javafx.util.*
 import kotlinx.coroutines.*
 import kotlinx.coroutines.internal.*
-import kotlinx.coroutines.javafx.JavaFx.delay
 import java.lang.UnsupportedOperationException
 import java.lang.reflect.*
 import java.util.concurrent.*