#include amxmodx
#include fakemeta

public plugin_init()
{
       register_forward(FM_CmdStart, "CmdStart_Post", 1);
}

public CmdStart_Post( player, uc_handle, random_seed )
{
       new buttons = get_uc(uc_handle, UC_Buttons);
       if( buttons & IN_ATTACK2 )
       {
              set_uc(uc_handle, UC_Buttons, buttons & ~IN_ATTACK2);
       }
}

#include amxmodx
#include fakemeta

public plugin_init()
{
       register_forward(FM_PlayerPreThink, "PlayerPreThink");
}

public PlayerPreThink( entity )
{
       new button = pev(entity, pev_button);
       if( button & IN_ATTACK2 )
       {
              set_pev(entity, pev_button, button & ~IN_ATTACK2);
       }
}