/////Cliente.php


public function delete($id)
    {
        /*Apaga os relacionados aqui*/


        $clicnpj = $this->cliente->find($id);
        $clicnpj->delete();
        $cliop = $this->cliente->find($id);
        $cliop->delete();

        parent::delete();
        //parent::delete();
    }


/////ClienteController.php


public function destroy($id)
    {
        $cli = $this->cliente->find($id);
        $cli->delete();

        return redirect()->route('cliente.index');
    }