Drop "go vet" from CI due to false positives

See golang/go#41205

.github/workflows/test.yml

@@ -19,7 +19,5 @@ jobs:
         run: |
           go install honnef.co/go/tools/cmd/staticcheck@latest
           staticcheck ./...
-      - name: Run vet
-        run: go vet ./...
       - name: Run tests
         run: go test -race ./...