- Fix variable set but not used

Coverity CID1058

This commit was SVN r19184.

ompi/mca/coll/tuned/coll_tuned_barrier.c

@@ -414,14 +414,14 @@ int ompi_coll_tuned_barrier_intra_tree(struct ompi_communicator_t *comm,
 
 int ompi_coll_tuned_barrier_intra_check_forced_init (coll_tuned_force_algorithm_mca_param_indices_t *mca_param_indices)
 {
-    int rc, max_alg = 6, requested_alg;
+    int max_alg = 6, requested_alg;
 
     ompi_coll_tuned_forced_max_algorithms[BARRIER] = max_alg;
 
-    rc = mca_base_param_reg_int (&mca_coll_tuned_component.super.collm_version,
-                                 "barrier_algorithm_count",
-                                 "Number of barrier algorithms available",
-                                 false, true, max_alg, NULL);
+    mca_base_param_reg_int (&mca_coll_tuned_component.super.collm_version,
+                            "barrier_algorithm_count",
+                            "Number of barrier algorithms available",
+                            false, true, max_alg, NULL);
 
     mca_param_indices->algorithm_param_index = 
        mca_base_param_reg_int(&mca_coll_tuned_component.super.collm_version,