functionObjects::partialWrite: Redundant and removed

the equivalent functionality is provided by the writeRegisteredObject
   functionObject in a MUCH simpler, easier and extensible manner.

functionObject: Removed the now redundant 'timeSet' function.

src/OpenFOAM/db/functionObjects/functionObject/functionObject.H

@@ -215,9 +215,6 @@ public:
         //  By default it simply calls execute().
         virtual bool end();
 
-        //- Called when time was set at the end of the Time::operator++
-        virtual bool timeSet();
-
         //- Called at the end of Time::adjustDeltaT() if adjustTime is true
         virtual bool adjustTimeStep();