Remove CfgAiSkill config changes

[PabstMirror]

Ref #5090 #4326

general[] = {0,0, 1,0.9};
is something like linearConversion [0, 1, skill, 0, 0.9];

The benefit is that it makes the default AI a little less skilled.
The negative is that it hard locks the range skill can be set to via command.

e.g. even if you do setSkill ["General", 1]
skillFinal "general" will always be less than 1

I think this should be removed and left to dedicated AI mods to change.
We also already have a zeus module that allows easy changing of skill.

[PabstMirror]

We could also re-add this feature via SQF
The effect should be the same, but it could be disabled via settings.

if (GVAR(adjustSkills)) then {
    ["CAManBase", "init", {
        params ["_unit"];
        if (local _unit) then {
            {
                _unit setSkill linearConversion [0, 1, _unit skill _x, 0, 0.9];
            } forEach [Skills...]
        };
    }, nil, nil, true] call CBA_fnc_addClassEventHandler;
};

[Cuel]

Imo modifying CfgAiSkill does not belong with ACE. It's for AI overhaul mods. It's already hard enough to work with vanilla AI, without mods playing a part in the skill modification. With the recent vanilla difficulty overhaul it should be easier for server admins to modify skills as wanted aswell.

[thojkooi]

On the feature page, we should probably mention that this feature was dropped in version 3.10.