DO NOT create a virtualenv in ~/.local

~/.local is NOT a Python virtualenv and should not be created as such.
Using `--user` installs python modules into
~/.local/lib/PYTHON_VERSION/site-packages

Making ~/.local a virtualenv messes with the paths in site-packages.

This reverts one of the changes from
I4b2d778f3fd81565c5dd009d50c969696faba0d2

Ref: https://www.python.org/dev/peps/pep-0370
Signed-off-by: Thanh Ha <zxiiro@gmail.com>
Change-Id: Ie2635b691c8cdf5718fc2617d4de41a3d5a2c347