Remove dead code in preparation for read replicas #7678

Job	Run time
Dry Run Goreleaser	12m 23s
Test Getting started	6m 27s
Check Go Generate (flyteadmin) / Go Generate	3m 43s
flyteadmin integration tests image / build_docker	3m 27s
Check Go Generate (datacatalog) / Go Generate	2m 23s
Check Go Generate (flytectl) / Go Generate	3m 35s
Check Go Generate (flytecopilot) / Go Generate	2m 14s
Check Go Generate (flytepropeller) / Go Generate	4m 2s
Lint (flytepropeller) / Run Lint	4m 25s
Lint (flytestdlib) / Run Lint	2m 42s
Lint (flyteidl) / Run Lint	2m 25s
Lint (flytecopilot) / Run Lint	2m 23s
Lint (datacatalog) / Run Lint	3m 2s
Lint (flyteplugins) / Run Lint	4m 0s
Unit Tests (flytepropeller) / Run Unit Test	6m 44s
Lint (flyteadmin) / Run Lint	4m 41s
Lint (flytectl) / Run Lint	3m 51s
Unit Tests (flytecopilot) / Run Unit Test	3m 43s
Unit Tests (flyteplugins) / Run Unit Test	5m 53s
Unit Tests (flytestdlib) / Run Unit Test	4m 57s
Build Images / Build & Push Image (datacatalog) / Push to Github Registry	5m 40s
Unit Tests (flyteadmin) / Run Unit Test	6m 54s
Unit Tests (datacatalog) / Run Unit Test	4m 27s
Build Images / Build & Push Image (flyteadmin) / Push to Github Registry	11m 11s
Unit Tests (flytectl) / Run Unit Test	5m 45s
Build Images / Build & Push Image (flytescheduler) / Push to Github Registry	11m 54s
Build Images / Build & Push Image (flytecopilot) / Push to Github Registry	6m 27s
Build Images / Build & Push Image (flytepropeller) / Push to Github Registry	10m 22s
Integration Test (flyteadmin) / Integration tests	7m 6s
	2h 36m 46s

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