Как выключить уведомления в чате?

#pragma newdecls required
//#define OTHERAWARD // другие награды
public void OnPluginStart()
{
    HookUserMessage(GetUserMessageId("TextMsg"), OnHookTextMsg, true);
    HookEvent("player_connect", Event_PlayerDisconnect, EventHookMode_Pre);
    HookEvent("player_disconnect", Event_PlayerDisconnect, EventHookMode_Pre);
    HookEvent("player_team", Event_PlayerTeam, EventHookMode_Pre);
}
public Action OnHookTextMsg(UserMsg msg_id, Handle msg, const int[] players, int playersNum, bool reliable, bool init)
{
    char msg_str[64];
    PbReadString(msg, "params", msg_str, sizeof(msg_str), 0);
    #if !defined OTHERAWARD
    if (!strcmp(msg_str, "#Player_Cash_Award_Killed_Enemy", false))return Plugin_Handled;
    #else
    if (StrContains(msg_str, "_Award_") != -1)return Plugin_Handled;
    #endif
    return Plugin_Continue;
}
public Action Event_PlayerTeam(Event event, const char[] name, bool dontBroadcast)
{
    if (!dontBroadcast)SetEventBroadcast(event, true);
    return Plugin_Continue;
}
public void Event_PlayerDisconnect(Event event, const char[] name, bool dontBroadcast)
{
    if (!dontBroadcast)SetEventBroadcast(event, true);
}