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/applyBoundaryLayer/createFields.H

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2022 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -29,7 +29,7 @@ volVectorField U
     IOobject
     (
         "U",
-        runTime.timeName(),
+        runTime.name(),
         mesh,
         IOobject::MUST_READ,
         IOobject::NO_WRITE
@@ -63,7 +63,7 @@ volScalarField mask
     IOobject
     (
         "mask",
-        runTime.timeName(),
+        runTime.name(),
         mesh,
         IOobject::NO_READ,
         IOobject::NO_WRITE