Remove HistoryTextWrapper#notifyListeners

This commit removes the notifyListeners method from HistoryTextWrapper
since it caters to no specific event except for DPIChange event which
breaks the chain of DPIChange processing leading to a broken drop down
button in the HistoryTextWraper. Hence, it can be safely removed.

Author: amartya4256

bundles/org.eclipse.ui.workbench.texteditor/src/org/eclipse/ui/internal/findandreplace/overlay/HistoryTextWrapper.java

@@ -24,7 +24,6 @@
 import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.widgets.Composite;
-import org.eclipse.swt.widgets.Event;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.swt.widgets.ToolItem;
 import org.eclipse.swt.widgets.Widget;
@@ -198,11 +197,6 @@ public boolean forceFocus() {
 		return false;
 	}
 
-	@Override
-	public void notifyListeners(int eventType, Event event) {
-		textBar.notifyListeners(eventType, event);
-	}
-
 	public Text getTextBar() {
 		return textBar;
 	}