[INTERNAL] sap.ui.component: Remove try-catch for sap.ui.require()
[INTERNAL] sap.ui.component: Remove try-catch for sap.ui.require()

With the new ui5loader, the try-catch isn't needed anymore as it
supports the provided "errback" handler to be notified about possible
errors when loading a module.

This is a follow-up of:
b1faf254b5cd4d7d9d999b6e399377ba5a0e9d8f

Change-Id: Ifa76259a784a650649f29e2d89f62e3e40032213

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