Remove outdated session migration check (#1385)

Author: jessarcher

src/Console/InstallCommand.php

@@ -134,12 +134,10 @@ public function handle()
      */
     protected function configureSession()
     {
-        if (! class_exists('CreateSessionsTable')) {
-            try {
-                $this->call('session:table');
-            } catch (Exception $e) {
-                //
-            }
+        try {
+            $this->call('session:table');
+        } catch (Exception $e) {
+            //
         }
 
         $this->replaceInFile("'SESSION_DRIVER', 'file'", "'SESSION_DRIVER', 'database'", config_path('session.php'));