diff --git a/web/src/components/MemoEditor.tsx b/web/src/components/MemoEditor.tsx
index 9ab7854f..bbf6b136 100644
--- a/web/src/components/MemoEditor.tsx
+++ b/web/src/components/MemoEditor.tsx
@@ -112,31 +112,6 @@ const MemoEditor = () => {
         handleSaveBtnClick();
         return;
       }
-      if (event.key === "b") {
-        event.preventDefault();
-        editorRef.current.insertText("", "**", "**");
-        return;
-      }
-      if (event.key === "i") {
-        event.preventDefault();
-        editorRef.current.insertText("", "*", "*");
-        return;
-      }
-      if (event.key === "e") {
-        event.preventDefault();
-        editorRef.current.insertText("", "`", "`");
-        return;
-      }
-      if (event.key === "k") {
-        event.preventDefault();
-        const selectedContent = editorRef.current.getSelectedContent();
-        editorRef.current.insertText("", "[", "](url)");
-        if (selectedContent) {
-          const startPos = editorRef.current.getCursorPosition() + 2;
-          const endPos = startPos + 3;
-          editorRef.current.setCursorPosition(startPos, endPos);
-        }
-      }
     }
     if (event.key === "Enter") {
       const cursorPosition = editorRef.current.getCursorPosition();