Remove scaffolded parallel plugin.

plugins/parallel.lisp

@@ -1,16 +0,0 @@
-(eval-when (:compile-toplevel :load-toplevel)
-  (ql:quickload 'lparallel))
-
-(defpackage :coleslaw-parallel
-  (:use :cl)
-  (:export #:enable))
-
-(in-package :coleslaw-parallel)
-
-;; TODO: The bulk of the speedup here should come from parallelizing discover.
-;; Publish will also benefit. Whether it's better to spin off threads for each
-;; content type/index type or the operations *within* discover/publish is not
-;; known, the higher granularity of doing it at the iterating over types level
-;; is certainly easier to prototype though.
-
-(defun enable ())