Remove unused variable (Coverty fix 178).

This commit was SVN r19195.

ompi/mca/coll/basic/coll_basic_scatterv.c

@@ -116,15 +116,13 @@ mca_coll_basic_scatterv_inter(void *sbuf, int *scounts,
                               struct ompi_communicator_t *comm,
                               mca_coll_base_module_t *module)
 {
-    int i, rank, size, err;
+    int i, size, err;
     char *ptmp;
     ptrdiff_t lb, extent;
     mca_coll_basic_module_t *basic_module = (mca_coll_basic_module_t*) module;
     ompi_request_t **reqs = basic_module->mccb_reqs;
 
     /* Initialize */
-
-    rank = ompi_comm_rank(comm);
     size = ompi_comm_remote_size(comm);
 
     /* If not root, receive data.  Note that we will only get here if