utils/genrandconfig: stop passing --passive-ftp to wget

Since there are no more packages using FTP-hosted files, we can drop
the --passive-ftp option from genrandconfig, as it would cause
problems on systems that use wget2.

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 881a8f13465b1be19540f6e35f2a658d49f63dd7)
[Peter: slightly reword commit message, no curl backend here]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

utils/genrandconfig

@@ -669,7 +669,7 @@ async def gen_config(args):
         configlines += minimalf.readlines()
 
     # Allow hosts with old certificates to download over https
-    configlines.append("BR2_WGET=\"wget --passive-ftp -nd -t 3 --no-check-certificate\"\n")
+    configlines.append("BR2_WGET=\"wget -nd -t 3 --no-check-certificate\"\n")
 
     # Per-package folder
     if randint(0, 15) == 0: