functionObjects: Removed the redundant "viable" member function

Construction failure and recovery is not handled with exceptions in functionObjectList

src/sampling/sampledSet/sampledSets/sampledSets.C

@@ -35,8 +35,9 @@ License
 
 namespace Foam
 {
-defineTypeNameAndDebug(sampledSets, 0);
-bool sampledSets::verbose_ = false;
+    defineTypeNameAndDebug(sampledSets, 0);
+
+    bool sampledSets::verbose_ = false;
 }
 
 
@@ -162,18 +163,6 @@ Foam::sampledSets::sampledSets
 }
 
 
-bool Foam::sampledSets::viable
-(
-    const word& name,
-    const objectRegistry& obr,
-    const dictionary& dict,
-    const bool loadFromFiles
-)
-{
-    return true;
-}
-
-
 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
 Foam::sampledSets::~sampledSets()

src/sampling/sampledSet/sampledSets/sampledSets.H

@@ -266,16 +266,6 @@ public:
             const bool loadFromFiles = false
         );
 
-        //- Return true if the construction of this functionObject is viable
-        //  i.e. the prerequisites for construction are available
-        static bool viable
-        (
-            const word& name,
-            const objectRegistry&,
-            const dictionary&,
-            const bool loadFromFiles = false
-        );
-
 
     //- Destructor
     virtual ~sampledSets();