Add finalizer to remove temporary session files.

scheme/httpd/surflets/web-server/root/surflets/admin-profiling.scm

@@ -10,6 +10,7 @@
 	locks
 	let-opt
 	receiving
+	primitives
 	)
   (begin
 
@@ -206,7 +207,6 @@ plot '~a' title 'Servlet Profiling ~a' with lines"
 	       (state:file-names-to-delete state)))))
 
     (define (delete-files state)
-      (format #t "running delete-files with state ~a~%" (state:file-names-to-delete state))
       (let ((file-names-to-delete (state:file-names-to-delete state)))
 	(if file-names-to-delete
 	    (for-each delete-filesys-object file-names-to-delete))))
@@ -235,6 +235,8 @@ plot '~a' title 'Servlet Profiling ~a' with lines"
       (set! gnuplot (search-gnuplot))
       (set-servlet-data! (make-state #f #f 0))
       (reset-profiling-state!)
+      ;; Remove state files if user did not do it.
+      (add-finalizer! (get-servlet-data) delete-files)
       (profile req))
 
     (define (search-gnuplot)