Backed out changeset 58175e77c460 from bug 553494 due to test failures

xulrunner/confvars.sh

@@ -43,7 +43,6 @@ MOZ_XULRUNNER=1
 MOZ_ENABLE_LIBXUL=1
 MOZ_STATIC_BUILD_UNSUPPORTED=1
 MOZ_APP_VERSION=$MOZILLA_VERSION
-MOZ_JAVAXPCOM=1
 if test "$MOZ_STORAGE"; then
   MOZ_PLACES=1
 fi