kvserver: remove redundant "too little" log line

The log line `rXXX's load is too little to matter.. ` was duplicated
with `Infof` and `VEventf(ctx,5)`. This was redundant. Remove the
`Infof` log line.

Epic: none
Release note: None

Author: kvoli

pkg/kv/kvserver/store_rebalancer.go

@@ -865,14 +865,6 @@ func (sr *StoreRebalancer) chooseRangeToRebalance(
 				rctx.LocalDesc.StoreID,
 				rctx.LocalDesc.Capacity.Load(),
 			)
-			log.KvDistribution.Infof(
-				ctx,
-				"r%d's %s load is too little to matter relative to s%d's %s total load",
-				candidateReplica.GetRangeID(),
-				candidateReplica.RangeUsageInfo().Load(),
-				rctx.LocalDesc.StoreID,
-				rctx.LocalDesc.Capacity.Load(),
-			)
 			continue
 		}