Remove: [Script] CONFIG_RANDOM from AddSetting flags (#11942)

It had a very weird interaction, and was only ever used by a single
AI.

src/script/script_config.cpp

@@ -34,14 +34,6 @@ void ScriptConfig::Change(std::optional<const std::string> name, int version, bo
 	this->ClearConfigList();
 
 	if (_game_mode == GM_NORMAL && this->info != nullptr) {
-		/* If we're in an existing game and the Script is changed, set all settings
-		 *  for the Script that have the random flag to a random value. */
-		for (const auto &item : *this->info->GetConfigList()) {
-			if (item.flags & SCRIPTCONFIG_RANDOM) {
-				this->SetSetting(item.name, ScriptObject::GetRandomizer(OWNER_NONE).Next(item.max_value + 1 - item.min_value) + item.min_value);
-			}
-		}
-
 		this->AddRandomDeviation();
 	}
 }