PAN-346  -- the meta-id match is breaking things, so we're backing it out

Revert "Loxigen: added src/dst meta id matches"

This reverts commit 6798fff95a652dabea64ca722e030f11b4f187b3.
Merge into master from pull request #30:
    PAN-346  -- the meta-id match is breaking things, so we're backing it out (https://github.com/floodlight/loxigen/pull/30)