Remove deleted make target invocation (#7005)

* Remove deleted make target invocation

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Remove last use of make in CI and delete last Makefile

Signed-off-by: Sebastian Malton <sebastian@malton.name>

Signed-off-by: Sebastian Malton <sebastian@malton.name>

.github/workflows/test.yml

@@ -53,15 +53,11 @@ jobs:
           retry_on: error
           command: yarn install --frozen-lockfile
 
-      - run: make test
+      - run: yarn run test:unit
         name: Run tests
         shell: bash
         if: ${{ matrix.type == 'unit' }}
 
-      - run: make ci-validate-dev
-        if: ${{ contains(github.event.pull_request.labels.*.name, 'dependencies') && matrix.type == 'unit' }}
-        name: Validate dev mode will work
-
       - name: Install integration test dependencies
         id: minikube
         uses: medyagh/setup-minikube@master