Remove code for the sherlodoc website

All of sherlodoc except for the website will be merged into the Odoc
repository.

Author: Julow

dune-project

@@ -42,5 +42,4 @@
   (base (and :with-test (= v0.16.3)))
   (alcotest :with-test))
  (depopts
-  (dream (>= 1.0.0~alpha5))
   (ancient (>= 0.9.1))))

sherlodoc.opam

@@ -28,7 +28,6 @@ depends: [
   "alcotest" {with-test}
 ]
 depopts: [
-  "dream" {>= "1.0.0~alpha5"}
   "ancient" {>= "0.9.1"}
 ]
 build: [