build!: remove temporary shim

[erikian]

This was added in #1641 to temporarily provide a missing file that Forge relied on until a new Forge version was released with an updated version of Packager, so we don't need this anymore.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.09%. Comparing base (224cc6a) to head (58f9495).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1698   +/-   ##
=======================================
  Coverage   89.09%   89.09%           
=======================================
  Files          17       17           
  Lines         899      899           
  Branches      187      187           
=======================================
  Hits          801      801           
  Misses         61       61           
  Partials       37       37           

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[dsanders11]

Isn't there still potential for issues here, if a user updates their version of @electron/packager without updating their version of Forge? Since Forge indicates it can use any minor version of v18 of @electron/packager, so someone on Forge v7.2.0 could still have a need for this.

It's probably an unlikely situation, but maybe we just leave the shim until the next breaking change in Packager?

[erikian]

Yeah good point, this can wait for the next major release, enough inadvertent breaking changes on v18 😂