Revert datadog links

[agocs]

What does this PR do?

Reverts #20, as it seems to cause the cloudformation macro to throw an error sometimes. We're still working on identifying when and why that error happens.

• [x] Bug fix
• [ ] New feature
• [ ] Breaking change
• [ ] Misc (docs, refactoring, dependency upgrade, etc.)

Check all that apply

• [ ] This PR's description is comprehensive
• [ ] This PR contains breaking changes that are documented in the description
• [ ] This PR introduces new APIs or parameters that are documented and unlikely to change in the foreseeable future
• [ ] This PR impacts documentation, and it has been updated (or a ticket has been logged)
• [ ] This PR's changes are covered by the automated tests
• [ ] This PR collects user input/sensitive content into Datadog

[codecov-io]

Codecov Report

Merging #24 (c1fb015) into master (c744cde) will decrease coverage by 0.17%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #24      +/-   ##
==========================================
- Coverage   89.34%   89.16%   -0.18%     
==========================================
  Files           7        7              
  Lines         366      360       -6     
  Branches       85       85              
==========================================
- Hits          327      321       -6     
  Misses         20       20              
  Partials       19       19              

Impacted Files	Coverage Δ
serverless/src/index.ts	90.74% <ø> (-0.93%)	:arrow_down:

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