GIT: boundary: not needed

tutorials/incompressible/icoFoam/cavity/constant/polyMesh/boundary

-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     M anipulation  |                                                 |
-\*---------------------------------------------------------------------------*/
-FoamFile
-{
-    version     2.0;
-    format      ascii;
-    class       polyBoundaryMesh;
-    location    "constant/polyMesh";
-    object      boundary;
-}
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-3
-(
-    movingWall
-    {
-        type            wall;
-        nFaces          20;
-        startFace       760;
-    }
-    fixedWalls
-    {
-        type            wall;
-        nFaces          60;
-        startFace       780;
-    }
-    frontAndBack
-    {
-        type            empty;
-        nFaces          800;
-        startFace       840;
-    }
-)
-
-// ************************************************************************* //