Remove unneeded closer interface

api/api.go

@@ -111,8 +111,3 @@ type VehicleRange interface {
 type Climater interface {
 	Climater() (active bool, outsideTemp float64, targetTemp float64, err error)
 }
-
-// Closer ends open sessions or connections
-type Closer interface {
-	Close() error
-}

cmd/charger.go

@@ -32,12 +32,9 @@ func runCharger(cmd *cobra.Command, args []string) {
 	}
 
 	if err := cp.configureChargers(conf); err != nil {
-		cp.Close() // cleanup any open sessions
 		log.FATAL.Fatal(err)
 	}
 
-	defer cp.Close() // cleanup on exit
-
 	chargers := cp.chargers
 	if len(args) == 1 {
 		arg := args[0]

cmd/config.go

@@ -152,12 +152,3 @@ func (cp *ConfigProvider) configureVehicles(conf config) error {
 
 	return nil
 }
-
-// Close performs cleanup activities on all entities maintained by the config provider
-func (cp *ConfigProvider) Close() {
-	for _, o := range cp.vehicles {
-		if c, ok := o.(api.Closer); ok {
-			c.Close()
-		}
-	}
-}

cmd/dump.go

@@ -35,12 +35,9 @@ func runDump(cmd *cobra.Command, args []string) {
 
 	site, err := loadConfig(conf)
 	if err != nil {
-		cp.Close() // cleanup any open sessions
 		log.FATAL.Fatal(err)
 	}
 
-	defer cp.Close() // cleanup on exit
-
 	d := dumper{len: 2}
 
 	d.Header("config", "=")

cmd/meter.go

@@ -32,12 +32,9 @@ func runMeter(cmd *cobra.Command, args []string) {
 	}
 
 	if err := cp.configureMeters(conf); err != nil {
-		cp.Close() // cleanup any open sessions
 		log.FATAL.Fatal(err)
 	}
 
-	defer cp.Close() // cleanup on exit
-
 	meters := cp.meters
 	if len(args) == 1 {
 		arg := args[0]

cmd/root.go

@@ -161,7 +161,6 @@ func run(cmd *cobra.Command, args []string) {
 	// setup loadpoints
 	site, err := loadConfig(conf)
 	if err != nil {
-		cp.Close()
 		log.FATAL.Fatal(err)
 	}
 
@@ -236,7 +235,6 @@ func run(cmd *cobra.Command, args []string) {
 		<-signalC    // wait for signal
 		close(stopC) // signal loop to end
 		<-exitC      // wait for loop to end
-		cp.Close()   // cleanup
 
 		os.Exit(1)
 	}()

cmd/vehicle.go

@@ -32,12 +32,9 @@ func runVehicle(cmd *cobra.Command, args []string) {
 	}
 
 	if err := cp.configureVehicles(conf); err != nil {
-		cp.Close() // cleanup any open sessions
 		log.FATAL.Fatal(err)
 	}
 
-	defer cp.Close() // cleanup on exit
-
 	vehicles := cp.vehicles
 	if len(args) == 1 {
 		arg := args[0]