Remove @noreference from text block and yield statement APIs

These preview features have been promoted to standard features now

Change-Id: I138f0f61614ece6c4e687d508cb545c9c555db80
diff --git a/org.eclipse.jdt.core/dom/org/eclipse/jdt/core/dom/AST.java b/org.eclipse.jdt.core/dom/org/eclipse/jdt/core/dom/AST.java
index 2268d4d..2ab2779 100644
--- a/org.eclipse.jdt.core/dom/org/eclipse/jdt/core/dom/AST.java
+++ b/org.eclipse.jdt.core/dom/org/eclipse/jdt/core/dom/AST.java
@@ -2885,8 +2885,7 @@
 	 * label/identifier/expression and is not implicit.
 	 *
 	 * @return a new unparented yield statement node
-	 * @since 3.20
-	 * @noreference This method is not intended to be referenced by clients.
+	 * @since 3.24
 	 */
 	public TextBlock newTextBlock() {
 		return new TextBlock(this);
@@ -3197,8 +3196,7 @@
 	 * label/identifier/expression and is not implicit.
 	 *
 	 * @return a new unparented yield statement node
-	 * @since 3.20
-	 * @noreference This method is not intended to be referenced by clients.
+	 * @since 3.24
 	 */
 	public YieldStatement newYieldStatement() {
 		return new YieldStatement(this);