removed one-liner function getVersion and implemented inline instead

pkg/diag.go

@@ -30,7 +30,7 @@ func GetDiag(d* Diag) error {
 		return fmt.Errorf("error occured while contacting Restcountries API: %s", err)
 	}
 
-	getVersion(d)
+	d.Version = "v1"
 	getUptime(d)
 
 	return nil
@@ -54,10 +54,6 @@ func getRestStatus(d *Diag) error {
 	return nil
 }
 
-func getVersion(d *Diag) {
-	d.Version = "v1"
-}
-
 // Returns application uptime in seconds
 func getUptime(d *Diag) {
 	up := time.Since(startTime).Seconds()