rm mypy test cache

.github/workflows/_lint.yml

@@ -105,15 +105,6 @@ jobs:
         run: |
           poetry install --with test
 
-      - name: Get .mypy_cache to speed up mypy
-        uses: actions/cache@v3
-        env:
-          SEGMENT_DOWNLOAD_TIMEOUT_MIN: "2"
-        with:
-          path: |
-            ${{ env.WORKDIR }}/.mypy_cache
-          key: mypy-test-${{ runner.os }}-${{ runner.arch }}-py${{ matrix.python-version }}-${{ inputs.working-directory }}-${{ hashFiles(format('{0}/poetry.lock', env.WORKDIR)) }}
-
       - name: Analysing the code with our lint
         working-directory: ${{ inputs.working-directory }}
         run: |