The Scrum Master is responsible for serving the team by facilitating and removing impediments to ensure there are minimal roadblocks in the way of the team. The Scrum Master also coaches the Scrum Team and organization to ensure the benefits of Scrum is realized.
"Removing every impediment for the Development Team" may seem like the right thing to do but by doing it this way, the Dev Team's ability to self-organize would be limited. There are some impediments that will depend solely on the Scrum Master and there will be some that require collaboration with the Dev Team. The former might be working with the finance department to renew services that the team is using. The latter might be lack of skills to make a particular item done. The Scrum Master can coach the team on finding different solutions to resolve the issue.
"Removing impediments" is good. "Removing every impediment for the Development Team" is not so good and sometimes not even possible.

The Scrum Master serves the Development Team in several ways, including: Coaching the Development Team in self-organization and cross-functionality; Facilitating Scrum events as requested or needed.
It is the Scrum Master's responsibility to teach the Scrum Team the value and objective of each Scrum event in order to help them maximize the benefits of each event in accordance to the Scrum values and theory.

The Sprint Backlog is a living artifact that evolves and changes as more is learned or discovered.

Explanation/Reference:

Without trust, team members will have difficulties acting and behaving in the ways that reflect the Scrum values and how effective they apply empiricism.