diff --git a/assets/js/replace_history.js b/assets/js/replace_history.js
deleted file mode 100644
index c7dfa1ca..00000000
--- a/assets/js/replace_history.js
+++ /dev/null
@@ -1,36 +0,0 @@
-$(window).scroll(function(){
-    const scroll_top = $(this).scrollTop();  // scroll + free margin
-
-    // create anchoer list
-    const anchor_list = $(".drawer-menu-item").map((index, section)=>{
-        const href = $(section).attr("href");
-        if(href && href.indexOf("#") == 0) return href;
-        else null;
-    });
-
-    // check anchor positions
-    const positions = anchor_list.map((index, anchor)=>{
-        if(!anchor) return -Infinity;
-        return $(anchor).offset().top - scroll_top - $(window).height()/2;  // offset from screen org
-    });
-
-    // get large position's index in negative positions
-    let max_pos = -Infinity;
-    let max_index = -1;
-    for(i = 0; i < positions.length; i++){
-        if(max_index == i) continue;  // nothing to do
-        if(positions[i] < 0){  // in negative potition
-            if(positions[i] > max_pos){  // find large
-                max_pos = positions[i];
-                max_index = i;
-            }
-        }
-    }
-
-    // change history from scroll
-    if(max_index == -1){
-        history.replaceState(null, null, "#");
-    }else{
-        history.replaceState(null, null, anchor_list[max_index]);
-    }
-});
\ No newline at end of file
diff --git a/index.html b/index.html
index 68bd1214..97b14ca3 100644
--- a/index.html
+++ b/index.html
@@ -649,10 +649,5 @@ <h2 class="section_title" id="section_contributors">
       src="./assets/preact_build/polyfill.js"
     ></script>
     <script type="text/javascript" src="./assets/preact_build/main.js"></script>
-    <script
-      type="text/javascript"
-      src="./assets/js/replace_history.js"
-      defer
-    ></script>
   </body>
 </html>