Removed unused variable.

IO_kernel/write_xml.f90

@@ -30,7 +30,7 @@ MODULE write_xml
       USE mp_world,             ONLY : mpime,root,world_comm
       USE io_global,            ONLY : stdout 
       USE io_push,              ONLY : io_push_bar
-      USE westcom,              ONLY : wfreq_save_dir, wstat_save_dir, l_is_wstat_converged, ev
+      USE westcom,              ONLY : wstat_save_dir, l_is_wstat_converged, ev
       USE westcom,              ONLY : qe_prefix, west_prefix, outdir 
       USE westcom,              ONLY : wstat_calculation, n_pdep_eigen, n_pdep_times, n_pdep_maxiter, n_dfpt_maxiter, &
                                      & n_pdep_read_from_file, trev_pdep, trev_pdep_rel, tr2_dfpt, l_minimize_exx_if_active, &