ENH: removed unused file

src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/VirtualMass/VirtualMassForceI.H

-/*---------------------------------------------------------------------------*\
-  =========                 |
-  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
-   \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
-     \\/     M anipulation  |
--------------------------------------------------------------------------------
-License
-    This file is part of OpenFOAM.
-
-    OpenFOAM is free software: you can redistribute it and/or modify it
-    under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
-    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-    for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
-
-\*---------------------------------------------------------------------------*/
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-template<class CloudType>
-const Foam::volVectorField& Foam::VirtualMassForce<CloudType>::DUcDt() const
-{
-    if (DUcDtPtr_)
-    {
-        return *DUcDtPtr_;
-    }
-    else
-    {
-        FatalErrorIn
-        (
-            "const volVectorField& VirtualMassForce<CloudType>::DUcDt()"
-            "const"
-        )   << "DUcDt field not allocated" << abort(FatalError);
-
-        return *reinterpret_cast<const volVectorField*>(0);
-    }
-}
-
-
-template<class CloudType>
-inline const Foam::interpolation<Foam::vector>&
-Foam::VirtualMassForce<CloudType>::DUcDtInterp() const
-{
-    if (!DUcDtInterpPtr_.valid())
-    {
-        FatalErrorIn
-        (
-            "inline const Foam::interpolation<Foam::vector>&"
-            "Foam::VirtualMassForce<CloudType>::DUcDtInterp() const"
-        )   << "Carrier pahase DUcDt interpolation object not set"
-            << abort(FatalError);
-    }
-
-    return DUcDtInterpPtr_();
-}
-
-
-// ************************************************************************* //