[INTERNAL][FIX] sap.uxap.ObjectPageLayout: Ensured cleanup of hidden tabs
[INTERNAL][FIX] sap.uxap.ObjectPageLayout: Ensured cleanup of hidden tabs

When in iconTabBar mode, only one section-tab is rendered at the time.

Since the objectPage inserts the selected tab to the DOM via flush (replacing the previously rendered),
it also has to ensure cleanup of the previously rendered dom-element.

Fixed by calling the designated cleanupControlWithoutRendering function of the renderManager,
that allows to cleanup (e.g. deregister listeners attached on the dom element).

Change-Id: I434078def9968af8841ff48f03e79526034e1dd5

SAP/openui5,nzamani/openui5,SQCLabs/openui5,nzamani/openui5,SAP/openui5,cschuff/openui5,SQCLabs/openui5,nzamani/openui5,cschuff/openui5,SQCLabs/openui5,SAP/openui5,cschuff/openui5,SAP/openui5