feat: update no_std ci workflow

Author: greged93

.github/workflows/ci.yaml

@@ -35,17 +35,13 @@ jobs:
     name: check no_std ${{ matrix.features }}
     runs-on: ubuntu-latest
     timeout-minutes: 30
-    strategy:
-      fail-fast: false
-      matrix:
-        features: ["", "kzg-rs"]
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
         with:
           targets: riscv32imac-unknown-none-elf
       - run: |
-          cargo check --target riscv32imac-unknown-none-elf --no-default-features --features=${{ matrix.features }}
+          cargo check --target riscv32imac-unknown-none-elf --no-default-features
 
   check:
     name: check ${{ matrix.features }}