Replace the S&W 619 with the 686 Plus

[BalthazarArgall]

Summary

None

Purpose of change

The S&W model 619 is such a rare gun that it has 0 hits on gunbroker open listings, removal?

Describe the solution

While the model 619 is insanely rare, the very similar model 686 is quite common, I think renaming the item and changing the values to match is perfectly appropriate. The specific variant is the Model 686 "Plus" so it matches the amount of bullets in the cylinder of the 619 while still being common enough to be included.

While I was at it I also removed the semi-obsolete melee values and a comment.

Describe alternatives you've considered

• Remove the 619 gasp.
• Implement the "base", more common 686 model and make the clip size 6.
• Remove the comment about the OAL stuff and make the barrel length 150mm, this has almost no impact but I decided to follow "good practices".

Testing

None.

Additional context

686 "Plus" listings on gunbroker:

@Holli-Git Did the thing, you can take it off the list. o7

[github-actions]

Spell checker encountered unrecognized words in the in-game text added in this pull request. See below for details.

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• Introduced in the 90's, the Smith & Wessons's model 686 'Plus' features a robust stainless steel frame, an adjustable front sight and a seventh shot that's sure to save your life.

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