drop: removed unused step

Author: raphael-goetz

.github/workflows/ci.yml

@@ -77,19 +77,3 @@ jobs:
         run: cargo publish -p lupus --locked
         env:
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
-
-  msrv:
-    name: Minimum supported Rust
-    if: ${{ !startsWith(github.ref, 'refs/tags/v') }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check out repository
-        uses: actions/checkout@v6
-        with:
-          persist-credentials: false
-
-      - name: Install Rust 1.88
-        uses: dtolnay/rust-toolchain@1.88
-
-      - name: Check library with MSRV
-        run: cargo check -p lupus --locked