Time::timeName(): no longer needed, calls replaced by name()

The timeName() function simply returns the dimensionedScalar::name() which holds
the user-time name of the current time and now that timeName() is no longer
virtual the dimensionedScalar::name() can be called directly.  The timeName()
function implementation is maintained for backward-compatibility.

applications/utilities/preProcessing/engineSwirl/createFields.H

@@ -49,7 +49,7 @@ volVectorField U
     IOobject
     (
         "U",
-        runTime.timeName(),
+        runTime.name(),
         mesh,
         IOobject::MUST_READ,
         IOobject::AUTO_WRITE