Issue Description: Few Skills are getting added automatically to an agent though it's not been selected for an agent in the OCM AgentSkillAssignment module.
This mainly happens because recorder skills been configured in OCM configuration.
Please check below config keys,
<add key="RecorderSkill" value="20" /> // here 20 is recorder skill which will be added to all the agents by default.
<add key="RecorderSkillLevel" value="1" /> // skill level
Recorder skill is nothing but default skill (in workqueue mode) that must be assigned to each agent while performing skill assignement.
If we see the auto-assigned skill is the same as recorder skill then this can't be considered as an issue, since each agent must have a default/recorder skill.