Stop configuring install_command in tox and stop use pip.

Currently, we are overriding 'install_command' to use 'pip'. This is
considered poor behavior and 'python -m pip' should be used instead:

https://snarky.ca/why-you-should-use-python-m-pip/

It turns out that this is the the default value provided by tox:

https://tox.readthedocs.io/en/latest/config.html#conf-install_command

So we can remove the line and simply use the default value. Use the
right way when it's necessary.

Change-Id: I410173d5fdcd8c592d98eed2f48b98e06299e8b3

0 files changed, 0 insertions, 0 deletions