Confirmed by Fuchsia that these aren't being used. This is triggering an additional 2 engine commits everyday, which is costing capacity.

• Stop the roller - https://skia-review.googlesource.com/c/skia-autoroll-internal-config/+/774657
• Remove DEPS - Remove Fuchsia Mac SDK from DEPS engine#47700
• Remove engine->flutter DEPS on it - https://skia-review.googlesource.com/c/skia-autoroll-internal-config/+/775817

TODO

• https://cs.opensource.google/flutter/flutter/+/master:bin/internal/fuchsia-mac.version - Remove fuchsia mac version #138101
• Clean up Flutter tool references Remove fuchsia mac version #138101