remove redundant docs build

We're already building the docs on netlify, so no need to do it in
GitHub CI as well. We'll just keep the check for assets.

.github/workflows/ci.yml

@@ -108,24 +108,6 @@ jobs:
       - name: Checkout sources
         uses: actions/checkout@v4
 
-      - name: Install stable toolchain
-        uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: stable
-      - uses: Swatinem/rust-cache@v2
-
-      - name: Docs.rs
-        env:
-          RUSTDOCFLAGS: >
-            -D warnings
-            --force-warn rustdoc::redundant-explicit-links
-            --force-warn renamed-and-removed-lints
-            --cfg docsrs
-            --cfg tokio_unstable
-          RUSTFLAGS: --cfg tokio_unstable
-        run: cargo doc --no-deps --all-features
-
-        run: 
       - name: Check tokio-console README images
         run: >
           for filename in