Revert "ENH: added xfer function to Field (stopped falling through to List)"

This reverts commit 49331bf9.

src/OpenFOAM/fields/Fields/Field/Field.C

@@ -578,13 +578,6 @@ tmp<Field<Type> > Field<Type>::T() const
 }
 
 
-template<class Type>
-Xfer<Field<Type> > Field<Type>::xfer()
-{
-    return xferMove(*this);
-}
-
-
 template<class Type>
 void Field<Type>::writeEntry(const word& keyword, Ostream& os) const
 {

src/OpenFOAM/fields/Fields/Field/Field.H

@@ -302,9 +302,6 @@ public:
         //- Return the field transpose (only defined for second rank tensors)
         tmp<Field<Type> > T() const;
 
-        //- Transfer contents to the Xfer container
-        Xfer<Field<Type> > xfer();
-
         //- Write the field as a dictionary entry
         void writeEntry(const word& keyword, Ostream& os) const;