Remove conflicting module with macro-debugger/emit, fix dynamic-requi…

[dzoep]

…re of protected symbol?

Summary of Changes

[Please describe your changes]

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[benknoble]

Does this mean define-qi-expansion-step is no longer used?

[dzoep]

Yes, now the expansion steps are logged in the passes.rkt module when run-passes runs the successive passes and logs (or tries to log) the changes for macro stepper using emit-local-step. Mainly this fixes some issues when Qi code is evaluated in scribblings using sandbox evaluation.

[countvajhula]

Yes, for more context, this was causing some docs builds to fail. I added a workaround for this without understanding the issue (and quite honestly, without understanding the fix!) in these packages that had been reporting as failing to build docs on the package index for a few weeks:

relation
generator-util
lazytree
seq

Merging, thanks @dzoep !