Remove sourcepathref from default-javac; in build.xml that did *not*
create a src-dir patternset, the default *empty* src-dir pattern set was
used.  Then, when javac would compile src/**/*.jar, it would *also*
compile any *other* java files it happened to find in the folder.

In other words, if there was an unpacked tree, let's say named 'p', and
there was a set of folders in there that eventually had java files, they
would all get compiled.

git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1605223 13f79535-47bb-0310-9956-ffa450edef68