Drop redundant cargo check steps from the check job

cargo clippy --all-targets already type-checks everything cargo check
would, so running both for each of the three feature/target
combinations was roughly doubling compile time in this job.

.forgejo/workflows/ci.yml

@@ -48,15 +48,6 @@ jobs:
       - name: Clippy (web crate, wasm client)
         run: cargo clippy -p feedsignal-web --no-default-features --features web --target wasm32-unknown-unknown -- -D warnings
 
-      - name: Check native crates
-        run: cargo check --workspace --exclude feedsignal-web
-
-      - name: Check web crate (server)
-        run: cargo check -p feedsignal-web --no-default-features --features server
-
-      - name: Check web crate (wasm client)
-        run: cargo check -p feedsignal-web --no-default-features --features web --target wasm32-unknown-unknown
-
   test:
     needs: check
     runs-on: rust-ci