remove 32 bit ci run as we no longer support it

.github/workflows/ci.yml

@@ -69,15 +69,3 @@ jobs:
           sudo apt-get -y remove libzstd || true
           sudo apt-get -y install uuid-dev libcurl4-openssl-dev libbz2-dev zlib1g-dev libsnappy-dev liblz4-dev libzstd-dev libgflags-dev
           make KEYDB_CFLAGS='-Werror' KEYDB_CXXFLAGS='-Werror' MALLOC=libc -j2
-  build-ubuntu-32bit:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-      with:
-        submodules: recursive
-    - name: make
-      run: |
-          sudo dpkg --add-architecture i386
-          sudo apt-get update
-          sudo apt-get -y install gcc-multilib g++-multilib libc6-dev-i386 lib32z1 uuid-dev:i386 libcurl4-openssl-dev:i386
-          make KEYDB_CFLAGS='-Werror' KEYDB_CXXFLAGS='-Werror' 32bit -j2