Remove inauthentic barcrawl vial smash

What have you done in this MR?

• Removal of Barcrawl flag from potion.java in Core - Inauthentic feature, according to sources: (No mention of it anywhere)
• https://runescape.wiki/w/Bar_Crawl_(miniquest)?oldid=820325
• https://runescape.wiki/w/Vial?oldid=860602
• http://www.global-rs.com/guides/miniquests/barcrawl/

@Ceikry Requires your approval due to changes in core, and could use your insight in terms of authenticity.

Are there any tricky things testers should keep an eye out for?

• No

For Testers:

Testing scope:

• Complete barcrawl and drink the last dose of a potion. If you retain an empty vial, the test passes.
• Barcrawl can be skipped by uploading a save with the correct save information added to your file: "barCrawl": { "started": true, "bars": [ true, true, true, true, true, true, true, true, true, true ] },

• I have tested these changes thoroughly.

• This requires extra testing due to changes to architecture or other similarly risky changes.

• I used the Thanos Tool for any JSON edits where possible, and have attached screenshots of any changes.

• I acknowledge that this contribution will be released under the AGPL license.

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