Remove coverage.yml

Signed-off-by: William Woodruff <william@yossarian.net>

.github/workflows/coverage.yml

@@ -1,19 +0,0 @@
-name: Coverage
-
-on:
-  pull_request:
-    types: [labeled]
-
-permissions: {}
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.event.pull_request.number }}
-  cancel-in-progress: true
-
-jobs:
-  test:
-    if: ${{ github.event.label.name == 'coverage' }}
-    uses: ./.github/workflows/test.yml
-    with:
-      save-rust-cache: "false"
-      collect-coverage: "true"