test: remove dead CLI test code #6039

Job	Run time
build-and-check	3m 8s
test-integration-packages/billing	1m 10s
test-integration-web	43s
test-integration-packages/agent-runtime	48s
test-integration-packages/internal	1m 7s
test-integration-common	44s
test-integration-sdk	1m 33s
test-packages/internal	51s
test-packages/agent-runtime	48s
test-integration-cli	47s
test-cli	54s
test-common	43s
test-.agents	49s
test-sdk	44s
test-packages/billing	42s
test-web	56s
	16m 27s

Provide feedback