[Fix #177] Don't run the tests on Emacs 25

While inf-clojure works fine on Emacs 25, the testing library assess
that we use in the test suite doesn't. Assess requires seq.el 2.14, which in
turn requires Emacs 26.

Author: bbatsov

.circleci/config.yml

@@ -9,12 +9,6 @@ default: &default-steps
 
 # Enumerated list of Emacs versions
 jobs:
-  test-emacs-25:
-    docker:
-      - image: silex/emacs:25-ci-cask
-        entrypoint: bash
-    <<: *default-steps
-
   test-emacs-26:
     docker:
       - image: silex/emacs:26-ci-cask
@@ -37,7 +31,6 @@ workflows:
   version: 2
   ci-test-matrix:
     jobs:
-      - test-emacs-25
       - test-emacs-26
       - test-emacs-27
       - test-emacs-master

test/inf-clojure-tests.el

@@ -4,9 +4,6 @@
 
 ;; Authors: Bozhidar Batsov <bozhidar@batsov.com>
 ;;          Andrea Richiardi <a.richiardi.work@gmail.com>
-;; URL: http://github.com/clojure-emacs/inf-clojure
-;; Keywords: processes, clojure
-;; Package-Requires: ((emacs "24.4") (clojure-mode "5.3"))
 
 ;; This file is not part of GNU Emacs.
 
@@ -25,16 +22,14 @@
 
 ;;; Commentary:
 ;;
-;; Code completion using alexander-yakushev/compliment.
+;; Tests for inf-clojure.
 
 ;;; Code:
 
-;; Tests for inf-clojure.el
-
 (message "Running tests on Emacs %s" emacs-version)
 
 (require 'buttercup)
-(require 'assess)
+(require 'assess) ;; requires Emacs 26, due to a dependency on seq.el
 (require 'inf-clojure)
 
 (cl-defmacro ict-with-assess-buffers ((&rest varlist) &body body)