remove x32 support

Author: stencillogic

.github/workflows/2-tests.yml

@@ -20,21 +20,3 @@ jobs:
       run: cargo test --workspace --release --verbose
     - name: Run no_std tests
       run: cargo test --workspace --release --verbose --no-default-features --features random,serde
-
-  build-and-test-x32:
-
-    runs-on: ubuntu-20.04
-
-    env:
-      DEP_GMP_LIMB_BITS: 32
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Install dependencies
-      run: sudo dpkg --add-architecture i386 && sudo apt-get update && sudo apt-get install -y gcc-multilib g++-multilib
-    - name: Add 32 bit toolchain
-      run: rustup toolchain install stable-i686-unknown-linux-gnu && rustup default stable-i686-unknown-linux-gnu
-    - name: Run tests
-      run: cargo test --workspace --release --verbose
-    - name: Run no_std tests
-      run: cargo test --workspace --release --verbose --no-default-features --features random,serde