gaofei 7dd4d7a99d Remove 'tools/install_venv.py' reference paragraph
Since 'tools/install_venv.py' has been removed during refactor[1].
This paragraph displayed in quickstart may cause some confusion to
someone who new to horizon, so remove this paragraph.

[1]6529cd1eb8

Change-Id: I302ef1f30781ce916c7309ebfa349fbedf8dd5a6
2018-01-30 00:42:12 +00:00
..