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/test/patchToPatch/Test-patchToPatch.C

@@ -80,7 +80,7 @@ int main(int argc, char *argv[])
                 Foam::IOobject
                 (
                     Foam::polyMesh::defaultRegion,
-                    srcRunTimePtr->timeName(),
+                    srcRunTimePtr->name(),
                     srcRunTimePtr(),
                     Foam::IOobject::MUST_READ
                 )