Andrew Kelley a0dd2919eb std.build.RunStep: clean up some leftover mess
* Remove some functions that are no longer needed since
   EmulateableRunStep is gone.
 * Add removeEnvironmentVariable function.
 * Support printing environment variables in --verbose mode.
2023-03-15 10:48:14 -07:00
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2023-03-15 10:48:13 -07:00