Hello ! I needed the same kind of detail in my game and i found this list of plugins, it's work easely - Yanfly plugins have good reputation

->
http://www.yanfly.moe/wiki/Skill_Core_(YEP)
This plugin allow you to add more option to customize your
character classes
( just download the bundle "free starter pack" and then you have to put the "YEP_SkillCore.js" in the file directory of your game project like this : your game project > js > plugins )
to activate the plugins :
Then you have ton insert these notetags in the class you want to hide the bar :
<Swap Gauge 2: null> to remove the MP bar
<Swap Gauge 3: null> to remove the TP bar