registry/api/sanitycheck: move genesis stateroot check into registration

[ptrus]

rt.Genesis.StateRoot.IsEmpty check should only be done when registering (otherwise supplementarysanity checks are failing)

[codecov]

Codecov Report

Merging #2643 into master will decrease coverage by 0.07%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #2643      +/-   ##
==========================================
- Coverage   63.06%   62.99%   -0.08%     
==========================================
  Files         364      364              
  Lines       34329    34330       +1     
==========================================
- Hits        21651    21626      -25     
- Misses      10027    10061      +34     
+ Partials     2651     2643       -8

Impacted Files	Coverage Δ
go/registry/api/api.go	36.82% <ø> (+0.11%)	⬆️
...consensus/tendermint/apps/registry/transactions.go	46.49% <0%> (-0.4%)	⬇️
go/worker/common/host/interface.go	38.46% <0%> (-15.39%)	⬇️
go/worker/compute/executor/committee/state.go	74.07% <0%> (-14.82%)	⬇️
go/consensus/api/grpc.go	57.02% <0%> (-6.62%)	⬇️
go/worker/compute/executor/committee/node.go	62.84% <0%> (-3.17%)	⬇️
go/worker/common/host/protocol/protocol.go	65.67% <0%> (-2.99%)	⬇️
go/worker/storage/service_external.go	51.68% <0%> (-2.25%)	⬇️
go/worker/compute/txnscheduler/committee/node.go	62.02% <0%> (-2.22%)	⬇️
go/worker/common/host/sandboxed.go	75.35% <0%> (-0.62%)	⬇️
... and 9 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 48b5e03...08401e5. Read the comment docs.