message: remove api deps install target
diff: -.PHONY: api api-install api-install-deps api-test api-lint api-docs api-deploy api-clean
  +.PHONY: api api-install api-test api-lint api-docs api-deploy api-clean
  -api: api-clean api-install api-install-deps api-lint api-test api-docs api-deploy
  +api: api-clean api-install api-lint api-test api-docs api-deploy
  api-install:
  - python3 setup.py install
  -
  -api-install-deps:
  pip3 install -r requirements.txt
  + python3 setup.py install
  api-test:
  nosetests --with-coverage
  