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/surface/surfaceRedistributePar/surfaceRedistributePar.C

@@ -234,7 +234,7 @@ int main(int argc, char *argv[])
                 IOobject
                 (
                     "faceCentres",                                  // name
-                    surfMesh.searchableSurface::time().timeName(),  // instance
+                    surfMesh.searchableSurface::time().name(),  // instance
                     surfMesh,
                     IOobject::NO_READ,
                     IOobject::AUTO_WRITE