chore: default to bolt experiment behavior for the 'project' subcommands

[zimeg]

Summary

This PR removes guards that check if the bolt experiment is toggled on since this has been the default behavior for some time to build confidence 🤖

No change to functionalities! Related code not used with the bolt experiment was removed too 🪓

Reviewers

Run familiar commands to create and initialize a project:

$ slack create asdf  # Either Bolt or Deno
$ cd asdf
$ slack init

Requirements

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[codecov]

Codecov Report

Attention: Patch coverage is 80.45977% with 17 lines in your changes missing coverage. Please review.

Project coverage is 63.37%. Comparing base (2484046) to head (f2dbb52).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/pkg/create/create.go	72.97%	10 Missing ⚠️
cmd/project/create_template.go	87.75%	3 Missing and 3 partials ⚠️
cmd/project/create.go	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #141      +/-   ##
==========================================
- Coverage   63.59%   63.37%   -0.22%     
==========================================
  Files         212      212              
  Lines       22398    22333      -65     
==========================================
- Hits        14244    14154      -90     
- Misses       7072     7094      +22     
- Partials     1082     1085       +3     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[mwbrooks]

✅ Looking good @zimeg!

🧪 Code looks good and I've tested locally. Let's merge it!

[zimeg]

@mwbrooks Thanks so much! I'm feeling confident in these changes and hoping to remove more code soon so I will merge this now 🪓