Just thought I'd mention that in the Yanfly BattleEngineCore in the "----Window Settings----" section there is an option called "Start Actor Command" which allows you to skip the party command menu and go straight to the player command menu (for those that want to skip the party command menu but not remove it entirely--- which I don't know how to do anyway).
It's also worth noting that the Soulpour plugin mentioned here skips the party command menu (same as the option in the Yanfly BattleEngineCore plugin) but doesn't actually disable back clicking to the party menu. So you can back click and it'll just say fight (which is pretty sloppy). It also defaults to adding the escape command individual actor command menus. The text in this case ("escape") is unaffected by a name change in the terms tab of the editor's database. So if you want it to say "flee" for instance instead of "escape" it won't read correctly. This most likely has to be changed in the SOUL_SkipPartyCommand plugin.
Anyway, for those not comfortable using the Soulpour plugin because of the issue of plagiarism mentioned above, the Yanfly BattleEngineCore can't help you skip the party command menu.
To restate my original question though since these plugins don't actually help with what I asked- Does anyone know a way to disable the party command menu entirely including play ability to back click into from the actor command menu? I'd even settle for a way to simply remove the sv actor's backward movement animation on escape.