[INTERNAL] sap.m.SelectList: improve rendering performance
[INTERNAL] sap.m.SelectList: improve rendering performance

Avoid unnecessary re-rendering of the list container
when items are destroyed or removed via .destroyItems() or
.removeAllItems().

In some scenarios, re-rendering of the list container
triggers the resize handler, which causes some additional
and unnecessary layouts.

Change-Id: Ic7016b351cad2befccac43814ddee6d3e82670de

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