Remove unnecessary include in Github Actions script.

Author: valentinewallace

.github/workflows/build.yml

@@ -22,7 +22,6 @@ jobs:
           - toolchain: 1.39.0
             build-net-tokio: true
             coverage: true
-          - toolchain: 1.34.2
     runs-on: ubuntu-latest
     steps:
       - name: Checkout source code