A Scrum Master coaches those inside and outside the team on the values of Scrum and incremental delivery.

Explanation
Explanation:
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 is responsible for removing impediments within the current context of the situation AND boundaries defined by the Scrum framework.

The cost of developing, delivering, and sustaining products can impact how the flow of value is managed throughout the life of a product. Each Sprint is an opportunity to inspect the investment (financial, time, effort, etc.) against the returned value (customer satisfaction, revenue, etc.) of the work that has been delivered. The team can then decide on what it should do next to maximize the value of the investment.

Because the Development Team is the ones doing the work, they are best suited to inspect and adapt the progress toward the Sprint Goal. At minimum, this is done every 24 hours through the Daily Scrum. It is the Scrum Master's responsibility to teach the Scrum Team the value and objective of each Scrum event in order for them to optimize the benefits of each event. Because the Daily Scrum is owned by the Development Team, it is up to them on how they should run it but the Scrum Master can provide guidance to ensure it adheres to the Scrum guidelines.