Remove deprecated 'name' metadata field from parameters

[MaxGhenis]

Summary

• Remove the deprecated name metadata field from 51 parameter files
• The name field is no longer used in the parameter system

Changes

• Removed name: field from metadata sections in 51 YAML parameter files across:
  • IRS credits (education, clean vehicle, recovery rebate, energy efficient home improvement, residential clean energy, premium tax credit)
  • IRS deductions and payroll
  • HHS Medicaid
  • Pennsylvania state tax
  • Simulation configuration

Test plan

• [x] Verified parameters load successfully without the name field
• [x] Tested parameter access still works correctly
• [x] Created changelog entry

Notes

The name metadata field was a deprecated field that is no longer used by policyengine-core. All parameters continue to function correctly without this field.

🤖 Generated with Claude Code

[MaxGhenis]

Closing in favor of a new PR from the main repository to avoid fork CI issues.

[PavelMakarchuk]

@MaxGhenis still relevant?