ROUTINE
-------

void ug_io_free_grid (INT_1D * Surf_Grid_BC_Flag,
                      INT_1D * Surf_ID_Flag,
                      INT_1D * Surf_Reconnection_Flag,
                      INT_4D * Surf_Quad_Connectivity,
                      INT_3D * Surf_Tria_Connectivity,
                      INT_8D * Vol_Hex_Connectivity,
                      INT_1D * Vol_ID_Flag,
                      INT_5D * Vol_Pent_5_Connectivity,
                      INT_6D * Vol_Pent_6_Connectivity,
                      INT_4D * Vol_Tet_Connectivity,
                      DOUBLE_3D * Coordinates,
                      DOUBLE_1D * Initial_Normal_Spacing,
                      DOUBLE_1D * BL_Thickness)

DESCRIPTION
-----------

Free grid data arrays.

INPUT ARGUMENTS
---------------

Surf_Grid_BC_Flag        : Surface face grid boundary condition flag.

Surf_ID_Flag             : Surface face ID flag.

Surf_Reconnection_Flag   : Surface face reconnection flag.

Surf_Quad_Connectivity   : Surface grid quad face connectivity.

Surf_Tria_Connectivity   : Surface grid tria face connectivity.

Vol_Hex_Connectivity     : Volume grid hexahedral element connectivity.

Vol_ID_Flag              : Volume element ID flag.

Vol_Pent_5_Connectivity  : Volume grid 5-node pentahedral element connectivity.

Vol_Pent_6_Connectivity  : Volume grid 6-node pentahedral element connectivity.

Vol_Tet_Connectivity     : Volume grid tetrahedral element connectivity.

Coordinates              : Grid node coordinates.

Initial_Normal_Spacing   : Grid node initial normal spacing.

BL_Thickness             : Thickness of boundary-layer.
