[INTERNAL] sap.m.NavContainer: Obsolete IE9 code removed
[INTERNAL] sap.m.NavContainer: Obsolete IE9 code removed

JIRA: BGSOFUIPIRIN-2564

Change-Id: Id53d92867eac5256d98bdda10be735e5d156a285

SAP/openui5,SAP/openui5,cschuff/openui5,cschuff/openui5,SAP/openui5,SAP/openui5,cschuff/openui5