Revert change to MooseApp start_time #15766
Revert change to MooseApp start_time #15766

andrsd/moose,milljm/moose,jessecarterMOOSE/moose,jessecarterMOOSE/moose,jessecarterMOOSE/moose,SudiptaBiswas/moose,milljm/moose,harterj/moose,nuclear-wizard/moose,laagesen/moose,milljm/moose,dschwen/moose,sapitts/moose,andrsd/moose,laagesen/moose,lindsayad/moose,laagesen/moose,sapitts/moose,laagesen/moose,lindsayad/moose,idaholab/moose,bwspenc/moose,SudiptaBiswas/moose,nuclear-wizard/moose,lindsayad/moose,dschwen/moose,lindsayad/moose,harterj/moose,andrsd/moose,dschwen/moose,SudiptaBiswas/moose,sapitts/moose,laagesen/moose,harterj/moose,nuclear-wizard/moose,harterj/moose,bwspenc/moose,harterj/moose,dschwen/moose,idaholab/moose,SudiptaBiswas/moose,milljm/moose,andrsd/moose,bwspenc/moose,idaholab/moose,lindsayad/moose,bwspenc/moose,SudiptaBiswas/moose,idaholab/moose,jessecarterMOOSE/moose,nuclear-wizard/moose,sapitts/moose,sapitts/moose,milljm/moose,jessecarterMOOSE/moose,dschwen/moose,idaholab/moose,andrsd/moose,bwspenc/moose