fix duplicate action registrations
fix duplicate action registrations

By convention, apps now call registerActionsTo in their associateSyntax
functions - adding all their app's custom actions to the apps action
factory.  But many apps also call Moose::associateSyntax which calls
Moose::registerActions which has an (usually omitted) arg that defaults
to including the current app's actions when registering.  This resulted
in some actiong being registered/created twice.  Fix this by removing
that default (which had already been removed before #10991 went in for
the Moose::registerObjects case.

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