Refactor command line interface

preload.go

@@ -21,15 +21,9 @@ import (
 	"code.dumpstack.io/tools/out-of-tree/qemu"
 )
 
-var disablePreload *bool
-
 func preloadModules(q *qemu.System, ka config.Artifact, ki config.KernelInfo,
 	dockerTimeout time.Duration) (err error) {
 
-	if *disablePreload {
-		return
-	}
-
 	for _, pm := range ka.Preload {
 		err = preload(q, ki, pm, dockerTimeout)
 		if err != nil {