checking LBC_ATT for salinity when salinity is undefined

[dcherian]

I'm having trouble restarting a simulation run with #undef SALINITY because the code is unnecessarily checking LBC_ATT for salt. The in file is actually consistent so I don't know why its raising an error. But it shouldn't be checking this anyway...

LBC_GETATT - inconsistent western  lateral boundary condition for variable:   salt
              restart file LBC keyword =  RadNud
              but assigned structure switch:  S(1, 7,1)%radiation = F
              check input script LBC keyword for consitency ...
              restart file:  ocean_rst.nc

 LBC_GETATT - inconsistent southern lateral boundary condition for variable:   salt
              restart file LBC keyword =  Per
              but assigned structure switch:  S(2, 7,1)%periodic = F
              check input script LBC keyword for consitency ...
              restart file:  ocean_rst.nc

 LBC_GETATT - inconsistent eastern  lateral boundary condition for variable:   salt
              restart file LBC keyword =  Clo
              but assigned structure switch:  S(3, 7,1)%closed = F
              check input script LBC keyword for consitency ...
              restart file:  ocean_rst.nc

 LBC_GETATT - inconsistent northern lateral boundary condition for variable:   salt
              restart file LBC keyword =  Per
              but assigned structure switch:  S(4, 7,1)%periodic = F
              check input script LBC keyword for consitency ...
              restart file:  ocean_rst.nc

Everything works perfectly with #define NO_LBC_ATT