Clean up redundant git configuration in docs repository

The container image already defines the user and the email for the builder's/CI's git operations[1] so there is no need to override it docs repository CI configuration.

[1]https://gitlab.eclipse.org/eclipse/oniro-core/oniro/-/blob/kirkstone/.oniro-ci/containers/bitbake-builder/Dockerfile

changed milestone to %goofy alpha

set weight to 1

assigned to @agherzan

changed iteration to Oniro Core Iterations Apr 1, 2022 - Apr 30, 2022

mentioned in commit agherzan/docs@e818842c

mentioned in merge request docs!5 (merged)

closed with merge request docs!5 (merged)

added teamsystems label