Remove clj testing as it's no longer used

.github/workflows/build.yml

@@ -79,5 +79,3 @@ jobs:
         run: |
           yarn cljs:test
           node static/tests.js
-      - name: Run Clojure test
-        run: clojure -Mtest-clj

README.md

@@ -118,12 +118,6 @@ Run Cypress tests
 yarn e2e-test
 ```
 
-Run Clojure tests. (Note: `.cljc` files may be tested both by ClojureScript, and Clojure.)
-
-```bash
-clj -Mtest-clj
-```
-
 ## Desktop app development
 
 ### 1. Compile to JavaScript

deps.edn

@@ -52,14 +52,6 @@
                           org.clojars.knubie/cljs-run-test {:mvn/version "1.0.1"}}
             :main-opts   ["-m" "shadow.cljs.devtools.cli"]}
 
-           :test-clj
-           {:extra-paths ["src/test/"]
-            :extra-deps
-            {com.cognitect/test-runner
-             {:git/url "https://github.com/cognitect-labs/test-runner",
-              :sha "76568540e7f40268ad2b646110f237a60295fa3c"}},
-            :main-opts ["-m" "cognitect.test-runner" "-d" "src/test"]}
-           
            :clj-kondo
            {:extra-deps {clj-kondo/clj-kondo {:mvn/version "2021.10.19"}}
             :main-opts ["-m" "clj-kondo.main"]}}}