python-markdown-it-py python-mdurl: remove

[cho-m]

python-markdown-it-py was only used by python-rich which was removed.

==> Analytics
install: 58 (30 days), 169 (90 days), 169 (365 days)
install-on-request: 29 (30 days), 70 (90 days), 70 (365 days)
build-error: 0 (30 days)

python-mdurl is only used by python-markdown-it-py.

==> Analytics
install: 68 (30 days), 167 (90 days), 167 (365 days)
install-on-request: 6 (30 days), 39 (90 days), 39 (365 days)
build-error: 0 (30 days)