(As a low-hanging fruit to drop the shared library count by
one... Each library less counts.)

This reverts commit b5ca34fa.

829a9b9c "In Java, css.uno.RuntimeException is
not derived from css.uno.Exception" is a better fix.

which lead to Bridge::map_to_java (jni_data.cxx) copying the Context member of RuntimeException
twice, once with a fieldID for Exception, which fails on Dalvik.

...that are (also) used during the build (e.g., cd testtools/*/lib &&
./bridgetest_inprocess_java).  Broken by gbuild'ification of jvmfwk.

in simple applications, e.g. spadmin, which don't have a custom main, then this
configuration check happens too early before Application::Main gets run to have
a chance to set the ProcessComponentContext.

seeing as no-one checks the return value, we don't need
the intermediate temporary string