Remove unused var face in cider-stacktrace--emit-spec-problems

Author: xiongtx

cider-stacktrace.el

@@ -776,8 +776,7 @@ the NAME.  The whole group is prefixed by string INDENT."
     (cider-stacktrace--insert-named-group indent "   Value: " value)
     (insert "\n")
     (cider-stacktrace--insert-named-group indent "Problems: \n")
-    (let ((indent2 (concat indent "    "))
-          (face 'font-lock-comment-face))
+    (let ((indent2 (concat indent "    ")))
       (dolist (prob problems)
         (nrepl-dbind-response prob (in val predicate reason spec at extra)
           (insert "\n")