Merge pull request youngyangyang04#1817 from LookSin/MyCommit

删除二叉树层序遍历637Java解法中没有必要的语句

Author: youngyangyang04

problems/0102.二叉树的层序遍历.md

@@ -1102,7 +1102,6 @@ public class N0637 {
 
         que.offerLast(root);
         while (!que.isEmpty()) {
-            TreeNode peek = que.peekFirst();
 
             int levelSize = que.size();
             double levelSum = 0.0;
@@ -3016,3 +3015,4 @@ impl Solution {
 <a href="https://programmercarl.com/other/kstar.html" target="_blank">
   <img src="../pics/网站星球宣传海报.jpg" width="1000"/>
 </a>
+