Slight efficiency improvement on ReplicatedMesh
Slight efficiency improvement on ReplicatedMesh

We only need to synchronize boundary data if there's a chance it might
not already be replicated.

friedmud/moose,milljm/moose,SudiptaBiswas/moose,sapitts/moose,milljm/moose,bwspenc/moose,dschwen/moose,YaqiWang/moose,laagesen/moose,SudiptaBiswas/moose,yipenggao/moose,bwspenc/moose,yipenggao/moose,dschwen/moose,sapitts/moose,jessecarterMOOSE/moose,nuclear-wizard/moose,friedmud/moose,YaqiWang/moose,bwspenc/moose,permcody/moose,Chuban/moose,lindsayad/moose,Chuban/moose,SudiptaBiswas/moose,dschwen/moose,Chuban/moose,idaholab/moose,harterj/moose,laagesen/moose,lindsayad/moose,milljm/moose,idaholab/moose,SudiptaBiswas/moose,friedmud/moose,harterj/moose,friedmud/moose,jessecarterMOOSE/moose,permcody/moose,harterj/moose,laagesen/moose,milljm/moose,sapitts/moose,idaholab/moose,yipenggao/moose,YaqiWang/moose,jessecarterMOOSE/moose,lindsayad/moose,nuclear-wizard/moose,sapitts/moose,andrsd/moose,Chuban/moose,yipenggao/moose,idaholab/moose,dschwen/moose,idaholab/moose,permcody/moose,nuclear-wizard/moose,andrsd/moose,laagesen/moose,harterj/moose,YaqiWang/moose,nuclear-wizard/moose,lindsayad/moose,milljm/moose,bwspenc/moose,andrsd/moose,andrsd/moose,andrsd/moose,laagesen/moose,SudiptaBiswas/moose,sapitts/moose,permcody/moose,bwspenc/moose,dschwen/moose,jessecarterMOOSE/moose,jessecarterMOOSE/moose,lindsayad/moose,harterj/moose