Update docs build

Author: alexanderzobnin

.circleci/config.yml

@@ -239,15 +239,9 @@ jobs:
     docker:
       - image: circleci/python:2.7
     steps:
-      - run:
-          name: install git lfs
-          command: 'curl -s https://packagecloud.io/install/repositories/github/git-lfs/script.deb.sh | sudo bash'
-      - run: sudo apt-get install git-lfs
-      - run: git lfs install
       - run: sudo pip install --upgrade pip
       - run: sudo pip install mkdocs
       - checkout
-      - run: git lfs fetch --all
       - run: cd docs && mkdocs build --clean
       - persist_to_workspace:
           root: .