Revert "cid#706553 Uncaught exception"

This reverts commit 0a87f4ad1a45aaaaad885a1418d0d6bed21db456, now that
fced31697bcc2a2a4da34d804582002de0320302 "comphelper::SequenceAsHashMap: throw
IllegalArgumentException" made the underlying problem go away.

Conflicts:
	framework/source/inc/loadenv/loadenv.hxx
	framework/source/loadenv/loadenv.cxx

Change-Id: Id2f468bf0f24f5a8a7a0e6eb113ccfedd35b03cc