remove codecoverage

Author: madhephaestus

.github/workflows/manifold.yml

@@ -83,18 +83,10 @@ jobs:
         python3 bindings/python/examples/run_all.py -e
         python3 -m pytest
 
-    - uses: codecov/codecov-action@v5
-      if: matrix.parallelization == 'OFF'
-      with:
-        disable_search: true
-        files: build/code_coverage.info
-        fail_ci_if_error: false
-        name: ${{matrix.parallelization}}
-        token: ${{secrets.CODECOV_TOKEN}}
-        verbose: true
+
     - name: test cmake consumer
       run: |
-        mkdir -P build
+        mkdir build
         cd build
         sudo cmake --install .
         cd ..