vncserver: extract DisableVncAuth()

unix/vncserver

@@ -96,8 +96,7 @@ my %config;
 # create a VNC password if they don't already have one.
 #
 
-# Disable vnc auth, kasmvnc uses https basic auth
+&DisableVncAuth();
-system("echo 'WrLNwLrcrxM=' | base64 -d > $vncUserDir/passwd");
 
 $kasmAuthEnabled = 1;
 
@@ -920,3 +919,8 @@ sub LoadSystemThenUserThenMandatoryConfigs {
    # development work that touches Xvnc itself.
    LoadConfig($vncSystemConfigMandatoryFile, 1);
 }
+
+sub DisableVncAuth() {
+   # Disable vnc auth, kasmvnc uses https basic auth
+   system("echo 'WrLNwLrcrxM=' | base64 -d > $vncUserDir/passwd");
+}