solved some functions error, empty function

app/Http/Controllers/SoController.php

@@ -8,16 +8,6 @@ use App\Soitem;
 
 class SoController extends Controller
 {
-    /**
-     * Display a listing of the resource.
-     *
-     * @return \Illuminate\Http\Response
-     */
-    // get the list of the shipping order 
-    public function index()
-    {
-        return view('welcome');
-    }
 
     /**
      * Display a listing of the resource.
@@ -104,27 +94,6 @@ class SoController extends Controller
         //
     }
 
-    /**
-     * Display the specified resource.
-     *
-     * @param  int  $id
-     * @return \Illuminate\Http\Response
-     */
-    public function show($id)
-    {
-        //
-    }
-
-    /**
-     * Show the form for editing the specified resource.
-     *
-     * @param  int  $id
-     * @return \Illuminate\Http\Response
-     */
-    public function edit($id)
-    {
-        //
-    }
 
     /**
      * Update the specified resource in storage.