Update template.yaml

[jodion]

Issue #, if available:
KMS isn't used in this code, but the template.yaml file references it.
Description of changes:
Removed KeyIdParameter as it's not used in the function.
Removed Policy pointing to the KeyIdParameter as it's not used in the function.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-io]

Codecov Report

Merging #818 into develop will decrease coverage by 0.52%.
The diff coverage is 100%.

@@             Coverage Diff             @@
##           develop     #818      +/-   ##
===========================================
- Coverage    94.85%   94.32%   -0.53%     
===========================================
  Files           67       67              
  Lines         2952     2626     -326     
  Branches       576      464     -112     
===========================================
- Hits          2800     2477     -323     
- Misses          76       78       +2     
+ Partials        76       71       -5

Impacted Files	Coverage Δ
...lator/plugins/application/serverless_app_plugin.py	80.15% <100%> (ø)	⬆️
samtranslator/__init__.py	100% <100%> (ø)	⬆️
samtranslator/model/eventsources/push.py	86.59% <0%> (-3.71%)	⬇️
samtranslator/model/api/api_generator.py	95.9% <0%> (-2.15%)	⬇️
samtranslator/model/sam_resources.py	96.01% <0%> (-0.97%)	⬇️
samtranslator/model/intrinsics.py	95% <0%> (-0.46%)	⬇️
samtranslator/swagger/swagger.py	97.84% <0%> (-0.09%)	⬇️
samtranslator/model/eventsources/pull.py	91.48% <0%> (-0.04%)	⬇️
...amtranslator/policy_template_processor/template.py	100% <0%> (ø)	⬆️
... and 27 more

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[brettstack]

Thanks for cleaning this up!

[brettstack]

Could you rebase your changes onto develop branch? Alternatively, close this PR and submit a new one directly to develop.

[timoschilling]

This PR can be close since the changed file has been removed in #1341.