Request: Remove the Warning about --production

[bdkjones]

This is a simple feature request (hence the lack of issue template). See this screenshot:

The Problem:

--production is dead-simple for humans to remember. --omit=dev, by contrast, is awful for humans. Every time I have to type the command I think, "What's that gobbledegook they changed '--production' to again? Eh, whatever, the old way works fine."

The Fix:

Just get rid of the CLI warning and let --production be an official alias for --omit=dev. The canonical build environments since the dawn of computers have been production and development, so it makes sense to recognize these as official aliases. For other, more nuanced environments, the --omit= parameter provides fine-grained control.