Don't re-insert the chunk-send request (in delegate_) if the IROB is waiting for a data check.  This prevents the sender thread from spinning until the data check response arrives.
Don't re-insert the chunk-send request (in delegate_) if the IROB is waiting for a data check.  This prevents the sender thread from spinning until the data check response arrives.

brettdh/libcmm,brettdh/libcmm,brettdh/libcmm,brettdh/libcmm,brettdh/libcmm