Revert workaround for swift#82034 once unblocked

[stmontgomery]

Description

Tracks reverting the workaround for swiftlang/swift#82034 applied to this project in the following PR:

#1139

The problem was affecting macOS builds of the swift-testing package.

Additional information

Example log showing the failure this caused before the workaround was applied:

https://ci.swift.org/job/pr-swift-testing-macos/1914/consoleFull