Do you mean the battle log "Harold attacks!" etc spam? If you use them, Yanfly's battle engine core replaces all the annoying (and useless) combat log spam with just the name of the skill being used. If you want even that gone, one of the plugins in my signature (AES_BattleCore) offers a note tag that can be applied to any skills where you want even the name to not show up. I'd only recommend hiding skill names for common skills though, like attack, guard, wait, etc because otherwise, you might confuse your players.