refactor: remove unused new tab handler reference in ActiveConnectionLayout

Author: Krishnachaitanyakc

src/renderer/components/ActiveConnectionLayout/ActiveConnectionLayout.tsx

@@ -4,7 +4,7 @@ import { Button } from '../ui'
 import { DatabaseExplorer } from '../DatabaseExplorer/DatabaseExplorer'
 import { QueryWorkspace } from '../QueryWorkspace/QueryWorkspace'
 import { ThemeSwitcher } from '../ThemeSwitcher'
-import { useState, useEffect, useRef } from 'react'
+import { useState, useEffect } from 'react'
 import './ActiveConnectionLayout.css'
 
 interface ActiveConnectionLayoutProps {
@@ -19,7 +19,6 @@ export function ActiveConnectionLayout({
   onDisconnect
 }: ActiveConnectionLayoutProps) {
   const [isReadOnly, setIsReadOnly] = useState(false)
-  const newTabHandlerRef = useRef<(() => void) | null>(null)
 
   useEffect(() => {
     const checkReadOnly = async () => {
@@ -78,9 +77,6 @@ export function ActiveConnectionLayout({
           <QueryWorkspace
             connectionId={connectionId}
             onOpenTableTab={handleOpenTableTab}
-            onRegisterNewTabHandler={(handler) => {
-              newTabHandlerRef.current = handler
-            }}
           />
         </Panel>
       </PanelGroup>