[Issue 15374] [internal] Nothing should import ddmd.mars

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=15374

--- Comment #3 from Iain Buclaw <ibuclaw at gdcproject.org> ---
Only ddmd.func remains in the original list.

Need to find a new home for genCmain.

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