iwd: don't mark generated profiles as read-only

First of all, the generated profile also gets generated as keyfile to
/run, thereby it looses the read-only flag (because this flag gets lost
when storing the profile to keyfile).

Second, I don't think we should artificially limit the capabilities
of the generated profile. If the user chooses to modify/delete it, so
just allow it.

src/devices/wifi/nm-iwd-manager.c

@@ -436,7 +436,6 @@ mirror_8021x_connection (NMIwdManager *self,
 	                                    NM_SETTING_CONNECTION_TYPE, NM_SETTING_WIRELESS_SETTING_NAME,
 	                                    NM_SETTING_CONNECTION_ID, name,
 	                                    NM_SETTING_CONNECTION_UUID, nm_utils_uuid_generate_buf (uuid),
-	                                    NM_SETTING_CONNECTION_READ_ONLY, TRUE,
 	                                    NULL));
 	nm_connection_add_setting (connection, setting);