adjust actions

Author: mplanchard

.github/workflows/ci.yml

@@ -49,11 +49,6 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
       - uses: "actions/checkout@v2"
-      - uses: "actions-rs/toolchain@v1"
-        with:
-          profile: "minimal"
-          target: "${{ matrix.target }}"
-          override: true
       - uses: "actions-rs/cargo@v1"
         with:
           command: "build"