[INTERNAL] sap.m.ComboBox: use .setTimeout() instead of jQuery.sap.delayedCall (less overhead)
[INTERNAL] sap.m.ComboBox: use .setTimeout() instead of
jQuery.sap.delayedCall (less overhead)

Change-Id: I9c7474f3e318207c0cd42583b8b7fdc29a39fb08

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