chore: Revert "feat: automatically generated instance_id (#179)"

[nunogois]

https://linear.app/unleash/issue/2-2429/revert-autogenned-instance-id-ruby

Reverts: #179

[coveralls]

Pull Request Test Coverage Report for Build 9938641755

Details

• 15 of 25 (60.0%) changed or added relevant lines in 5 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.005%) to 97.147%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
spec/unleash/scheduled_executor_spec.rb	5	15	33.33%

Totals
Change from base Build 9875914991:	0.005%
Covered Lines:	2554
Relevant Lines:	2629

---

💛 - Coveralls

[sighphyre]

LGTM

[Drowze]

Just to confirm: we had a couple of our apps updated to v5.0.3 (before this revert) and had Unleash crashing:

/usr/local/bundle/gems/unleash-5.0.3/lib/unleash/configuration.rb:136:in `set_option': undefined method `instance_id=' for an instance of Unleash::Configuration (NoMethodError)
      __send__("#{opt}=", val)
      ^^^^^^^^```

Was this reverted because of the above issue? If yes, maybe it'd best to yank it from rubygems as well (I see it's still there) since that version looks broken.

[sighphyre]

Just to confirm: we had a couple of our apps updated to v5.0.3 (before this revert) and had Unleash crashing:

/usr/local/bundle/gems/unleash-5.0.3/lib/unleash/configuration.rb:136:in `set_option': undefined method `instance_id=' for an instance of Unleash::Configuration (NoMethodError)
      __send__("#{opt}=", val)
      ^^^^^^^^```

Was this reverted because of the above issue? If yes, maybe it'd best to yank it from rubygems as well (I see it's still there) since that version looks broken.

Apologies for that and thanks for the suggestion, it's been removed from rubygems now