!100 merge fix_infback into master

Fix inflateBack() bug

Created-by: zhang_hao_zheng
Commit-by: zhang_hao_zheng
Merged-by: openharmony_ci
Description: ### 相关的Issue
https://gitcode.com/openharmony/third_party_zlib/issues/220
  
### 原因（目的、解决的问题等）
Fix inflateBack() bug that would fail to detect a too far back.

### 描述（做了什么，变更了什么）
https://github.com/madler/zlib/commit/09a1572aa624e5ddb6c075dc013880de70b1b9b9

### 测试用例（新增、改动、可能影响的功能）
    
    


See merge request: openharmony/third_party_zlib!100

infback.c

@@ -470,8 +470,6 @@ int ZEXPORT inflateBack(z_streamp strm, in_func in, void FAR *in_desc,
             /* use inflate_fast() if we have enough input and output */
             if (have >= 6 && left >= 258) {
                 RESTORE();
-                if (state->whave < state->wsize)
-                    state->whave = state->wsize - left;
                 inflate_fast(strm, state->wsize);
                 LOAD();
                 break;