Amend examples (#211)

examples/sunnah/collections/go/listAvailableCollections.go

@@ -1,15 +0,0 @@
-package example
-
-import (
-	"fmt"
-	"github.com/micro/services/clients/go/sunnah"
-	"os"
-)
-
-// Get a list of available collections. A collection is
-// a compilation of hadiths collected and written by an author.
-func ListAvailableCollections() {
-	sunnahService := sunnah.NewSunnahService(os.Getenv("MICRO_API_TOKEN"))
-	rsp, err := sunnahService.Collections(&sunnah.CollectionsRequest{})
-	fmt.Println(rsp, err)
-}