how to remove commits from branch code example

Example 1: git clear commits

git reset --hard origin

Example 2: git remove commits from branch after push

git reset --hard <last_working_commit_id>
So we must not reset to the commit_id that we don't want.

Then sure, we must push to remote branch:

git push --force

Example 3: delete everythng after a certain commit

git reset HEAD@{index}