ENH: add remove objects handling in timeFunctionObject and regionFunctionObject

...nctionObjects/regionFunctionObject/regionFunctionObject.C

...nctionObjects/regionFunctionObject/regionFunctionObject.H

...functionObjects/stateFunctionObject/stateFunctionObject.C

...functionObjects/stateFunctionObject/stateFunctionObject.H

...b/functionObjects/timeFunctionObject/timeFunctionObject.C

...b/functionObjects/timeFunctionObject/timeFunctionObject.H

src/functionObjects/field/externalCoupled/externalCoupled.C

src/functionObjects/field/externalCoupled/externalCoupled.H

src/functionObjects/utilities/abort/abort.C

src/functionObjects/utilities/abort/abort.H

...jects/utilities/codedFunctionObject/codedFunctionObject.C

...Objects/utilities/setTimeStep/setTimeStepFunctionObject.C

...Objects/utilities/setTimeStep/setTimeStepFunctionObject.H

src/functionObjects/utilities/systemCall/systemCall.C

src/functionObjects/utilities/systemCall/systemCall.H

...ilities/timeActivatedFileUpdate/timeActivatedFileUpdate.C

...ilities/timeActivatedFileUpdate/timeActivatedFileUpdate.H

src/functionObjects/utilities/vtkWrite/vtkWrite.C

src/functionObjects/utilities/vtkWrite/vtkWrite.H