Remove gentoo pip rosdep entries

[mabelzhang]

Per #29909, remove gentoo pip entries because pip installs on gentoo need to be done with --user, and rosdep does system installs, so pip entries won't work on Gentoo.
The correct way is to create overlays. Will create a ticket in ros/ros-overlay for these.

Package name:

Removed gentoo pip entries in the following keys:

python-cython-pip
python-multiprocess-pip
python-parameterized
python-pyqtgraph
python3-aio-pika-pip
python3-ansible-runner-pip
python3-jupyros-pip
python3-simple-pid-pip
python3-siphon-pip
python3-tilestache-pip
python3-vcstool

Package Upstream Source:

Purpose of using this:

See note at top.

Links to Distribution Packages

Notes on a few entries that are removed but might have alternatives:

Replaced parameterized in key python-parameterized.
There is a dev-python/parameterized for Python 3, now added to python3-parameterized key.
https://packages.gentoo.org/packages/dev-python/parameterized

Removed pyqtgraph in key python-pyqtgraph.
There is a dev-python/pyqtgraph for Python 3, and it is already in python3-pyqtgraph key.
https://packages.gentoo.org/packages/dev-python/pyqtgraph

Removed ansible-runner in key python3-ansible-runner-pip.
There is a dev-python/ansible-runner for Python 3, but since the rosdep key name is -pip, I didn’t add the system package there.
If someone wants it for gentoo, they might just have to add a new key for python3-ansible-runner.
https://packages.gentoo.org/packages/dev-python/ansible-runner

Removed siphon in key python3-siphon-pip.
There is a net-analyzer/siphon, but it doesn’t say what Python it’s for, and the website is currently not accessible, and there isn’t a non-pip siphon rosdep key, so I didn’t add it.
https://packages.gentoo.org/packages/net-analyzer/siphon

Replaced vcstool pip entry in python3-vcstool with vcstool system dependency.
https://index.ros.org/d/python3-vcstool/

Other entries are simply removed because I didn't find alternatives.

[mabelzhang]

Issue created ros/ros-overlay#1020