[test fork] Remove properties in model for testing purpose

[JackTn]

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[openapi-pipeline-app-test]

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[openapi-pipeline-app-test]

Generated ApiView

Language	Package Name	ApiView Link
Java	azure-ai-contentsafety	https://apiviewstagingtest.com/Assemblies/Review/85abc443e88f4c26b278ef14dd4c2365?revisionId=ad4c1388f0844b21b1fc3935f2ba4067
.Net	Azure.AI.ContentSafety	https://apiviewstagingtest.com/Assemblies/Review/691f0761a725401a9075ac85acb58dc5?revisionId=00362cf886a34231bbf8b667f6d1a0ec
Python	azure-ai-contentsafety	https://apiviewstagingtest.com/Assemblies/Review/b1ce525b31904c30a20c3aa2b734590b?revisionId=468d88ddd7d64c8ea2a9521eb81109bc
TypeSpec	ContentSafety	https://apiviewstagingtest.com/Assemblies/Review/3664b8944c2b4ad288655f7e805b7476?revisionId=7b836b85c689468c9fa4877795d4720a
Swagger	ContentSafety	https://apiviewstagingtest.com/Assemblies/Review/65310c3dcf564395a750314444a9fbb6?revisionId=d02f565edfc84001bacaa4cf28d43bbc