Removed unresolved imports from Portlets to avoid build errors

This PR fixes build errors caused by portlets https://jenkins.mw.lab.eng.bos.redhat.com/hudson/view/DevStudio/view/DevStudio_Master/job/jbosstools-integration-tests.aggregate_master/163/console

The removed code was fixing https://bugs.eclipse.org/bugs/show_bug.cgi?id=368436

JBoss Tools Component: portlets
Author: rrabara