Get rid of tenant DB manager connection config

assets/config.php

@@ -152,16 +152,6 @@ return [
         // 'pgsql' => Stancl\Tenancy\TenantDatabaseManagers\PostgreSQLSchemaManager::class, // Separate by schema instead of database
     ],
 
-    /**
-     * Connections used by TenantDatabaseManagers. This tells, for example, the
-     * MySQLDatabaseManager to use the mysql connection to create databases.
-     */
-    'database_manager_connections' => [
-        'sqlite' => 'sqlite',
-        'mysql' => 'mysql',
-        'pgsql' => 'pgsql',
-    ],
-
     /**
      * Features are classes that provide additional functionality
      * not needed for tenancy to be bootstrapped. They are run