fix(simapp/v2): correctly wire client/v2, clean-up api client/v2 #77654

Job	Run time
split-test-files	12s
test-integration	5m 42s
test-sim-nondeterminism	24s
test-clientv2	1m 36s
test-core	48s
test-coretesting	24s
test-depinject	37s
test-errors	35s
test-math	35s
test-schema	26s
test-collections	21s
test-collections-protocodec	25s
test-indexer-postgres	33s
test-schema-testing	22s
test-simapp-v2	13m 22s
test-confix	33s
test-cosmovisor	29s
test-hubl	33s
test-orm	24s
test-log	31s
test-store	29s
test-store-v2	28s
test-x-accounts	33s
test-x-accounts-base	25s
test-x-accounts-lockup	30s
test-x-accounts-multisig	19s
test-x-tx	29s
test-x-circuit	26s
test-x-distribution	32s
test-x-nft	25s
test-x-evidence	25s
test-x-feegrant	27s
test-x-group	26s
test-x-protocolpool	24s
test-x-upgrade	37s
test-x-authz	34s
test-x-bank	31s
test-x-gov	25s
test-x-mint	31s
test-x-slashing	25s
test-x-staking	34s
test-tools-benchmark	40s
test-x-consensus	31s
test-x-epochs	26s
tests (00)	8m 5s
tests (01)	3m 48s
tests (02)	3m 49s
tests (03)	4m 19s
repo-analysis	1m 40s
	1h 2m 5s

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