Drop fuzzing in rust workflow

.github/workflows/rust.yml

@@ -20,7 +20,6 @@ jobs:
               DO_NO_STD: true
           - rust: nightly
             env:
-              DO_FUZZ: true
               DO_BENCH: true
               AS_DEPENDENCY: true
               DO_NO_STD: true
@@ -29,11 +28,6 @@ jobs:
               AS_DEPENDENCY: true
               PIN_VERSIONS: true
     steps:
-
-      - name: Install fuzz dependencies
-        run: sudo apt-get update -y && sudo apt-get install -y binutils-dev libunwind8-dev libcurl4-openssl-dev libelf-dev libdw-dev cmake gcc libiberty-dev
-        env: ${{ matrix.env }}
-        if: ${{ env.DO_FUZZ == 'true' }}
       - name: Checkout Crate
         uses: actions/checkout@v2
       - name: Checkout Toolchain