Stop setting a default install command for tox

The install command we've been setting for tox is effectively
equivalent to its internal default. Just drop it.

diff --git a/tox.ini b/tox.ini
index 84ae5a5..7cc7b59 100644 (file)
--- a/tox.ini
+++ b/tox.ini
@@ -12,7 +12,6 @@ ignore_basepython_conflict = True
 description = run the functional selftest with optimized configuration
 basepython = python3
 usedevelop = True
-install_command = pip install {opts} {packages}
 # TODO(fungi) Switch this to "error" once
 # https://github.com/pypa/setuptools/issues/2086 and
 # https://github.com/pypa/setuptools/issues/2466 are fixed in a new release of