fix: remove nil check

Remove the nil check for `w.RunOnceCommandList` since `len()` for a `nil` slice is defined as zero.

Signed-off-by: Ryan Johnson <ryan.johnson@broadcom.com>

Author: tenthirtyam

builder/vsphere/clone/step_customize.go

@@ -440,7 +440,7 @@ func (w *WindowsOptions) sysprep() *types.CustomizationSysprep {
 }
 
 func (w *WindowsOptions) guiRunOnce() *types.CustomizationGuiRunOnce {
-	if w.RunOnceCommandList == nil || len(w.RunOnceCommandList) == 0 {
+	if len(w.RunOnceCommandList) == 0 {
 		return &types.CustomizationGuiRunOnce{
 			CommandList: []string{""},
 		}