refactor remaining code from urfave/cli

Signed-off-by: Christian Richter <c.richter@opencloud.eu>

opencloud/pkg/runtime/options.go

@@ -2,14 +2,12 @@ package runtime
 
 import (
 	"github.com/opencloud-eu/opencloud/pkg/log"
-	"github.com/urfave/cli/v2"
 )
 
 // Options is a runtime option
 type Options struct {
 	Services []string
 	Logger   log.Logger
-	Context  *cli.Context
 }
 
 // Option undocumented
@@ -21,10 +19,3 @@ func Services(s []string) Option {
 		o.Services = append(o.Services, s...)
 	}
 }
-
-// Context option
-func Context(c *cli.Context) Option {
-	return func(o *Options) {
-		o.Context = c
-	}
-}