Revert "Should be compiling Plugin Metrics and packaging it."

This reverts commit e2ba126289afd4bf169eac7969011de76193b020.
Revert "Added Plugin Metrics submodule"

This reverts commit 0cbbec3aa0ed8d61dfd5580afb46b37fd5b8009e.
Undid all of the my attempted Plugin Metrics hacking. I have a solution.