Remove Debug listener on HCR pop close

Remove debug event listener when HCR failure dialog is closed after
thread termination

Author: SougandhS

org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/HotCodeReplaceErrorDialog.java

@@ -161,7 +161,10 @@ public void handleDebugEvents(DebugEvent[] events) {
 		for (DebugEvent event : events) {
 			if (event.getSource() instanceof JDIThread de) {
 				if (de.isTerminated()) {
-					Display.getDefault().asyncExec(() -> this.close());
+					Display.getDefault().asyncExec(() -> {
+						this.close();
+						DebugPlugin.getDefault().removeDebugEventListener(this);
+					});
 				}
 			}
 		}