diff --git a/packages/docusaurus-theme-classic/src/theme-classic.d.ts b/packages/docusaurus-theme-classic/src/theme-classic.d.ts
index c0461fd614ce..0ecc1e22373c 100644
--- a/packages/docusaurus-theme-classic/src/theme-classic.d.ts
+++ b/packages/docusaurus-theme-classic/src/theme-classic.d.ts
@@ -202,18 +202,6 @@ declare module '@theme/hooks/useHideableNavbar' {
   export default useHideableNavbar;
 }
 
-declare module '@theme/hooks/useLocationHash' {
-  import type {Dispatch, SetStateAction} from 'react';
-
-  export type useLocationHashReturns = readonly [
-    string,
-    Dispatch<SetStateAction<string>>,
-  ];
-
-  const useLocationHash: (initialHash: string) => useLocationHashReturns;
-  export default useLocationHash;
-}
-
 declare module '@theme/hooks/useLockBodyScroll' {
   const useLockBodyScroll: (lock?: boolean) => void;
   export default useLockBodyScroll;
diff --git a/packages/docusaurus-theme-classic/src/theme/NavbarItem/DropdownNavbarItem.tsx b/packages/docusaurus-theme-classic/src/theme/NavbarItem/DropdownNavbarItem.tsx
index 456262c90234..770f86bd37bd 100644
--- a/packages/docusaurus-theme-classic/src/theme/NavbarItem/DropdownNavbarItem.tsx
+++ b/packages/docusaurus-theme-classic/src/theme/NavbarItem/DropdownNavbarItem.tsx
@@ -55,7 +55,6 @@ function DropdownNavbarItemDesktop({
   ...props
 }: DesktopOrMobileNavBarItemProps) {
   const dropdownRef = useRef<HTMLDivElement>(null);
-  const dropdownMenuRef = useRef<HTMLUListElement>(null);
   const [showDropdown, setShowDropdown] = useState(false);
 
   useEffect(() => {
@@ -98,7 +97,7 @@ function DropdownNavbarItemDesktop({
         }}>
         {props.children ?? props.label}
       </NavLink>
-      <ul ref={dropdownMenuRef} className="dropdown__menu">
+      <ul className="dropdown__menu">
         {items.map((childItemProps, i) => (
           <NavbarItem
             isDropdownItem
diff --git a/packages/docusaurus-theme-classic/src/theme/hooks/useLocationHash.ts b/packages/docusaurus-theme-classic/src/theme/hooks/useLocationHash.ts
deleted file mode 100644
index eb2edff64fdf..000000000000
--- a/packages/docusaurus-theme-classic/src/theme/hooks/useLocationHash.ts
+++ /dev/null
@@ -1,25 +0,0 @@
-/**
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-import {useState, useEffect} from 'react';
-import type {useLocationHashReturns} from '@theme/hooks/useLocationHash';
-
-function useLocationHash(initialHash: string): useLocationHashReturns {
-  const [hash, setHash] = useState(initialHash);
-
-  useEffect(() => {
-    const handleHashChange = () => setHash(window.location.hash);
-
-    window.addEventListener('hashchange', handleHashChange);
-
-    return () => window.removeEventListener('hashchange', handleHashChange);
-  }, []);
-
-  return [hash, setHash];
-}
-
-export default useLocationHash;