# HG changeset patch
# User Vladimir Homutov <vl@nginx.com>
# Date 1569850760 -10800
# Node ID 7fdcf308e0f043a10b12adee6ddae11b895396c6
# Parent  d34a81b49214ef30f0b1b45d621612455d1e4bac
Core: removed dead code in ngx_rbtree_delete().

The result of ngx_rbtree_min() is always a node with the left child equal to
sentinel, thus the check is unnecessary.

diff --git a/src/core/ngx_rbtree.c b/src/core/ngx_rbtree.c
--- a/src/core/ngx_rbtree.c
+++ b/src/core/ngx_rbtree.c
@@ -174,12 +174,7 @@ ngx_rbtree_delete(ngx_rbtree_t *tree, ng
 
     } else {
         subst = ngx_rbtree_min(node->right, sentinel);
-
-        if (subst->left != sentinel) {
-            temp = subst->left;
-        } else {
-            temp = subst->right;
-        }
+        temp = subst->right;
     }
 
     if (subst == *root) {