Fix double unquoting of install flags during host fact gathering phase (

#1)

`--kubelet-extra-args` already get unquoted when being loaded via `cluster.Flags` type. Attempting to do so again during fact gathering phase will result in an obscure `invalid syntax` error returned by `strconv.Unquote()`.

phase/gather_facts.go

@@ -2,7 +2,6 @@ package phase
 
 import (
 	"fmt"
-	"strconv"
 
 	"github.com/k0sproject/k0sctl/config/cluster"
 	log "github.com/sirupsen/logrus"
@@ -37,21 +36,13 @@ func (p *GatherFacts) investigateHost(h *cluster.Host) error {
 
 	extra := h.InstallFlags.GetValue("--kubelet-extra-args")
 	if extra != "" {
-		unq, err := strconv.Unquote(extra)
-		if err != nil {
-			return err
-		}
-		ef := cluster.Flags{unq}
+		ef := cluster.Flags{extra}
 		if over := ef.GetValue("--hostname-override"); over != "" {
-			unq, err = strconv.Unquote(over)
-			if err != nil {
-				return err
-			}
 			if over != "" {
-				if h.HostnameOverride != unq {
+				if h.HostnameOverride != over {
 					return fmt.Errorf("hostname and installFlags kubelet-extra-args hostname-override mismatch, only define either one")
 				}
-				h.HostnameOverride = unq
+				h.HostnameOverride = over
 			}
 		}
 	}