dot/swank.lisp: Actually delete the Swank contrib clobbering.

This was introduced in b5bf344506d856bb6d35931354fbb211de847022 because
Swank's presentation-streams machinery broke compatibility of FASL files
between Swanky and plain Lisp systems.  But that was over a decade ago,
and my testing hasn't shown a problem, so let's try without that for
now.

diff --git a/dot/swank.lisp b/dot/swank.lisp
index 2000f61..904a984 100644 (file)
--- a/dot/swank.lisp
+++ b/dot/swank.lisp
@@ -9,8 +9,7 @@
 
 ;; Maybe inhibit some Swank extensions.
 (let ((forbidden-contribs
-       '(#+sbcl swank-loader::swank-presentations
-        #+sbcl swank-loader::swank-presentation-streams)))
+       '()))
   (when forbidden-contribs
     (setf swank-loader::*contribs*
          (delete-if (lambda (thing) (member thing forbidden-contribs))