I read the extensions Details page, but didn't see anything about how to remove these icons at the top-right of the screen?

Update: first icon is from Git History, removed by "gitHistory.showEditorTitleMenuBarIcons": false,
Second and last are not from this extension, but these two appear to be:

You can customize them using the gitlens.menus setting -- or you can also use the GitLens interactive settings editor from the command palette run GitLens: Open Settings. See the Menus & Toolbars section of the General group
Hope that helps!
Thanks, it was the second-to-last item, and required a Reload Window to take effect:

In 2020, this is now achieved by deselecting 'Add commands to the editor group toolbar' and still requires a reload to take affect:

Could you make an option so the "editorGroup"->"compare" buttons only show up when viewing a revision?
I mean these guys:

As in, I would:
- run "open changes with previous revision" in command palette
- then the 3 buttons show up
- I close the revision window
- 3 buttons disappear
The buttons are extremely useful, but they take up such a huge space that I sometimes can't see more than one tab in a split window title
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Most helpful comment
Thanks, it was the second-to-last item, and required a
Reload Windowto take effect: