fix: production with free P.I.

internal/controller/ship_group_upgrade_test.go

@@ -11,17 +11,6 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-// var (
-// 	Cruiser = game.ShipType{
-// 		Name:     "Cruiser",
-// 		Drive:    15,
-// 		Armament: 1,
-// 		Weapons:  15,
-// 		Shields:  15,
-// 		Cargo:    0,
-// 	}
-// )
-
 func TestBlockUpgradeCost(t *testing.T) {
 	assert.Equal(t, 00.0, controller.BlockUpgradeCost(1, 1.0, 1.0))
 	assert.Equal(t, 25.0, controller.BlockUpgradeCost(5, 1.0, 2.0))