functionObjects: Removed the redundant "viable" member function

...ng/dataConversion/foamToVTK/foamToVTK/writeVTK/writeVTK.C

...ng/dataConversion/foamToVTK/foamToVTK/writeVTK/writeVTK.H

etc/codeTemplates/dynamicCode/functionObjectTemplate.C

etc/codeTemplates/dynamicCode/functionObjectTemplate.H

etc/codeTemplates/functionObject/FUNCTIONOBJECT.C

etc/codeTemplates/functionObject/FUNCTIONOBJECT.H

...enFOAM/db/functionObjects/IOOutputFilter/IOOutputFilter.C

...enFOAM/db/functionObjects/IOOutputFilter/IOOutputFilter.H

...s/OutputFilterFunctionObject/OutputFilterFunctionObject.C

src/postProcessing/functionObjects/field/div/div.C

src/postProcessing/functionObjects/field/div/div.H

...ionObjects/field/fieldAverage/fieldAverage/fieldAverage.C

...ionObjects/field/fieldAverage/fieldAverage/fieldAverage.H

...oordinateSystemTransform/fieldCoordinateSystemTransform.C

...oordinateSystemTransform/fieldCoordinateSystemTransform.H

...rocessing/functionObjects/field/fieldMinMax/fieldMinMax.C

...rocessing/functionObjects/field/fieldMinMax/fieldMinMax.H

...functionObjects/field/fieldValues/cellSource/cellSource.C

...functionObjects/field/fieldValues/cellSource/cellSource.H

...functionObjects/field/fieldValues/faceSource/faceSource.C