Drop further ethtool dependency mentions

* Card ID: ENT-5099

This is a follow-up to 4c81d7c
> 2215974: Collect network facts using 'ip'

While the ethtool dependency was dropped from the .spec file, it was not
completely removed from the rest of the build files. This commit fixes
that.

scripts/build_updates_img.sh

@@ -67,7 +67,7 @@ make -e install
 PYTHON_SITE_PACKAGE_DIRS=`${PYTHON_BIN} -c "import site; print(' '.join(site.getsitepackages()))"`
 
 # List of required Python packages
-PY_PACKAGES="dateutil ethtool"
+PY_PACKAGES="dateutil"
 
 # Copy required Python modules to updates.img too
 for pkg in `echo ${PY_PACKAGES}`

scripts/container-pre-test.sh

@@ -18,7 +18,7 @@ dnf --setopt install_weak_deps=False install -y \
   python3-setuptools \
   openssl-devel glib2-devel libdnf-devel \
   python3-rpm python3-librepo python3-gobject python3-gobject python3-dbus \
-  python3-dateutil python3-requests python3-iniparse python3-ethtool \
+  python3-dateutil python3-requests python3-iniparse \
   glibc-langpack-en glibc-langpack-de glibc-langpack-ja
 
 # Install test packages

setup.py

@@ -229,7 +229,6 @@ def find_py(self):
 install_requires = [
     "iniparse",
     "python-dateutil",
-    "ethtool",
     "dbus-python",
 ]