Y25-485 - Remove API v1 code from Sequencescape

[StephenHulme]

Describe the Housekeeping

• Remove all API v1 code from Sequencescape
• Includes, tests, packages (sinatra, rack, etc.), and the archiving of sequencescape-client
  • Initial code that can be removed includes:
  • app/api -> can all go
  • app/middleware -> can all go
  • Remove the api route from config/routes.rb (line 22)
  • Remove spec/api
  • All reference to include ModelExtension should be deleted but also double check that any functions still needed are covered
  • Continue removing code and (trying to) run specs as you go - it's likely that more unused code and unexpected dependencies will be uncovered.

Blocking issues

• The Limber v1 removal epic (Y24-190 - Move Sequencescape API v1 calls over to API v2 (EPIC) limber#1772)
  • Limber final v1 to v2 (Y24-190-5 Remove all SS API v1 code from Limber (Milestone 5) limber#2172)
• Gatekeeper v1 to v2 (Y24-185 - Move Sequencescape API v1 calls over to API v2 gatekeeper#410)

Additional context
Add any other context about the problem here.