function removeOverflowContentAndPopup() {
			if (this.bPopupInitialized) {
				this._oOverflowPopup.destroy();
				this._oOverflowPopup = null;
				this.popup.detachOpened(this.handlePopupOpened, this);
				this.popup.detachClosed(this.handlePopupClosed, this);
				this.popup.destroy();
				this.popup = null;
				this.bPopupInitialized = false;
			}
		}
Destroy/Remove overflow menu content that is inside the popup and the popup itself
@private