...instead of the ure executable's obsolte -ro arguments (leading to usage of
deprecated bootstrap_InitialComponentContext with an XSimpleRegistry instead).

The com.sun.star.lang.MultiServiceFactory service is (only) implemented by the
cppuhelper/source/defaultbootstrap.cxx ServiceManager itself, but it doesn't add
itself to its list of know services, so cppmain.cc should not test for it.

Change-Id: Iaaf8d466fe3607ab9bac6aba09396809e53404f3