codedFvModel: Removed unnecessary and inconsistent "name" entry

The name of the codedFvModel is now set to the key name of the sub-dictionary in
the fvModels dictionary that defines it.

src/fvModels/general/codedFvModel/codedFvModel.H

@@ -33,7 +33,6 @@ Usage
     energySource
     {
         type            codedFvModel;
-        name            sourceTime;
 
         selectionMode   all;
 
@@ -104,9 +103,6 @@ class codedFvModel
         //- The set of cells the fvConstraint applies to
         fvCellSet set_;
 
-        //- The name
-        word name_;
-
         //- The name of the field that this fvModel applies to
         word fieldName_;