[Libreoffice] New LO_{LIB, JAVA}_DIR make special inbuild component handling superfluous

<http://cgit.freedesktop.org/libreoffice/core/commit/?id=c1bd2a254b4a22a02d515b084dabafe963f175ff> 
does away with the need for specially crafted *.inbuild.component files. 
 It replaces the $BRAND_BASE_DIR/program[/classes] paths in the 
component files with ones based on new bootstrap varialbes LO_LIB_DIR 
(i.e., $BRAND_BASE_DIR/program) and LO_JAVA_DIR (i.e., 
$BRAND_BASE_DIR/program/classes) set in the fundamental ini.  In-build 
uses simply need to set those variables now (uses in CppunitTest.mk etc. 
already modified accordingly).

I tested this on a clean build only, non-clean builds may stumble over 
stale component files (when doing unit checks etc.).  If that is the case,

  find */${INPATH?}/ -name \*.component -exec rm {} \;

should clean up enough (and not be too expensive).

Stephan