I refactored the `Git` strategy to use `SystemCommand` instead of `Open3#capture3` in #13387 but I forgot to remove `require "open3"` at the time. `Git` doesn't use `open3` now, so this removes the unused `require`.
I refactored the `Git` strategy to use `SystemCommand` instead of `Open3#capture3` in #13387 but I forgot to remove `require "open3"` at the time. `Git` doesn't use `open3` now, so this removes the unused `require`.