feat(devexp): remove dead code #16086

Job	Run time
Dataset Config Validation	29s
detect what files changed	3s
Publish Snuba to DockerHub	0s
pre-commit hooks	38s
Linting - Rust	2m 28s
Build snuba CI image	9m 32s
mypy typing	1m 1s
Front end tests for snuba admin	48s
Tests and code coverage (test)	16m 27s
Tests on multiple clickhouse versions (21.8.13.1.altinitystable)	15m 26s
Tests and code coverage (test_rust)	12m 14s
Tests on multiple clickhouse versions (22.8.15.25.altinitystable)	15m 13s
Tests on multiple clickhouse versions (23.3.13.7.altinitystable)	15m 37s
Tests and code coverage (test_distributed)	20m 23s
Tests on multiple clickhouse versions (23.8.8.21.altinitystable)	15m 25s
sentry (0)	15m 34s
Tests and code coverage (test_distributed_migrations)	9m 48s
sentry (1)	15m 39s
sentry (2)	15m 45s
sentry (3)	15m 38s
	3h 18m 8s

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