nexus: Fold chunkdata_hit() into its callers
nexus: Fold chunkdata_hit() into its callers

- Fold trivial chunkdata_hit() function into its callers

cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr