btl/ugni:vader swat some compiler warnings

Swat some compiler warnings.

Signed-off-by: Howard Pritchard <howardp@lanl.gov>

opal/mca/btl/ugni/btl_ugni_module.c

@@ -131,7 +131,6 @@ mca_btl_ugni_module_finalize (struct mca_btl_base_module_t *btl)
     mca_btl_ugni_module_t *ugni_module = (mca_btl_ugni_module_t *)btl;
     mca_btl_base_endpoint_t *ep;
     uint64_t key;
-    void *node;
     int rc;
 
     while (ugni_module->active_send_count) {

opal/mca/btl/vader/btl_vader_xpmem.c

@@ -76,7 +76,7 @@ mca_rcache_base_registration_t *vader_get_registation (struct mca_btl_base_endpo
     vader_check_reg_ctx_t check_ctx = {.ep = ep, .reg = &reg, .vma_module = vma_module};
     xpmem_addr_t xpmem_addr;
     uintptr_t base, bound;
-    int rc, i;
+    int rc;
 
     base = OPAL_DOWN_ALIGN((uintptr_t) rem_ptr, attach_align, uintptr_t);
     bound = OPAL_ALIGN((uintptr_t) rem_ptr + size - 1, attach_align, uintptr_t) + 1;