Fix CI problems (#127)

* Temporally Fix CI compilation

.github/workflows/deploy-docker-nightly.yml

@@ -1,29 +0,0 @@
-name:                           Docker Image Nightly Release
-
-# Run "nightly" build on each commit to "dev" branch.
-on:
-  push:
-    branches:
-      - dev
-
-jobs:
-  deploy-docker:
-    name:                       Build Release
-    runs-on:                    ubuntu-latest
-    steps:
-      - name:                   Checkout sources
-        uses:                   actions/checkout@master
-      - name:                   Install toolchain
-        uses:                   actions-rs/toolchain@v1
-        with:
-          toolchain:            stable
-          profile:              minimal
-          override:             true
-      - name:                   Deploy to docker hub
-        uses: elgohr/Publish-Docker-Github-Action@master
-        with:
-          name: openethereum/openethereum
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
-          dockerfile: scripts/docker/alpine/Dockerfile
-          tags: "nightly"