[NPANDAY-579] Don't add transitive dependency if copied to local repository

In this instance, the dependency will be available transitively, so there is
no need to add it to the POM. This is only required if we are using the
system pathed DLL where no transitive dependency information will be
available.

git-svn-id: https://svn.apache.org/repos/asf/incubator/npanday/trunk@1514210 13f79535-47bb-0310-9956-ffa450edef68