MBO: Remove unused assignment

The local found variable is not used in this case. Commit
653d227e9f40cad1114c1c96654061446fd8b131 ('MBO: Improve supported
operating class generation') introduced this variable and unnecessarily
set it here. Remove the write-only assignment to silence static
analyzers.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
diff --git a/wpa_supplicant/mbo.c b/wpa_supplicant/mbo.c
index dcf07a9..5b5c3e6 100644
--- a/wpa_supplicant/mbo.c
+++ b/wpa_supplicant/mbo.c
@@ -576,7 +576,6 @@
 	if (op_class->op_class == 128) {
 		u8 channels[] = { 42, 58, 106, 122, 138, 155 };
 
-		found = 0;
 		for (i = 0; i < ARRAY_SIZE(channels); i++) {
 			if (verify_channel(mode, channels[i], op_class->bw) ==
 			    ALLOWED)