remove SSM calls

[chaudharysaket]

• newrelic-lambda-extension has sanitycheck calls to SSM parameter store that adds to production quotas for customers.
• Call SSM store when NEW_RELIC_LICENSE_KEY_SSM_PARAMETER_NAME var is set

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.18%. Comparing base (d7d37c2) to head (662ebbb).

❗ Current head 662ebbb differs from pull request most recent head adb29fe. Consider uploading reports for the commit adb29fe to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #203      +/-   ##
==========================================
- Coverage   81.13%   80.18%   -0.96%     
==========================================
  Files          24       24              
  Lines        1219     1221       +2     
==========================================
- Hits          989      979      -10     
- Misses        164      176      +12     
  Partials       66       66              

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