* As UCB is only ever initialized with "Local"/"Office", remove this
configuration vector completely. The "create" ctor creates an instance
internally initialized with those "Local"/"Office" keys. Special (test) code
can still instantiate an uninitialized one via plain createInstance. And for
backwards compatilibity process startup still ensures to create an initialized
instance early, in case there is still code out there (in extensions) that
later calls plain createInstance and expects to get the already-initialized
(single) instance.
* XInitialization is an "implementation detail" of the UniversalContentBroker
service, do not expose in XUniversalContentBroker.
* ucbhelper/configurationkeys.hxx is no longer needed and is removed.
* ucbhelper/contentbroker.hxx is an empty wrapper and is removed; however, that
requires ucbhelper::Content constructors to take explicit XComponentContext
arguments now.
* The only remaining code in ucbhelper/source/client/contentbroker.cxx is
Android-only InitUCBHelper. Is that relevant still?
Change-Id: I3f7bddd0456bffbcd13590c66d9011915c760f28
