ci: drop duplicated fixture-vendoring block (review fix on #784)

Author: bokelley

.github/workflows/ci.yml

@@ -410,11 +410,6 @@ jobs:
           cp tests/fixtures/aao-reference-formats.json "${SDK_ROOT}/test/lib/v2-projection-fixtures/aao-reference-formats.json"
           mkdir -p "${SDK_ROOT}/schemas/cache/3.1.0-beta.2/registries"
           cp tests/fixtures/v1-canonical-mapping.json "${SDK_ROOT}/schemas/cache/3.1.0-beta.2/registries/v1-canonical-mapping.json"
-          SDK_ROOT="$(npm root -g)/@adcp/sdk"
-          mkdir -p "${SDK_ROOT}/test/lib/v2-projection-fixtures"
-          cp tests/fixtures/aao-reference-formats.json "${SDK_ROOT}/test/lib/v2-projection-fixtures/aao-reference-formats.json"
-          mkdir -p "${SDK_ROOT}/schemas/cache/3.1.0-beta.2/registries"
-          cp tests/fixtures/v1-canonical-mapping.json "${SDK_ROOT}/schemas/cache/3.1.0-beta.2/registries/v1-canonical-mapping.json"
 
       - name: Install dependencies
         run: |