removes unnecessary known hosts stuff

.gitlab-ci.yml

@@ -27,11 +27,9 @@ build:
 .deploy-template: &deploy_template
     stage: deploy
     script:
-        - apk add openssh-client --update
+        - apk add openssh-client
         - eval $(ssh-agent -s)
         - echo "$SSH_PRIVATE_KEY" | ssh-add -
-        - mkdir -p $HOME/.ssh
-        - echo "$KNOWN_HOSTS" >> $HOME/.ssh/known_hosts
         - ./.gitlab-ci/scripts/deployer.sh -f/src/.gitlab-ci/deployer/deploy.php deploy ${CI_BUILD_REF_NAME}
     when: manual