Fix race condition where we unsafely remove player entity from async thread
Fix race condition where we unsafely remove player entity from async thread

GlowstonePlusPlus/GlowstonePlusPlus,GreenBeard/GlowstonePlusPlus,Postremus/GlowstonePlusPlus,Postremus/GlowstonePlusPlus,GreenBeard/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,BlazePowered/Blaze-Server,GlowstonePlusPlus/GlowstonePlusPlus,GreenBeard/GlowstonePlusPlus,keke142/GlowstonePlusPlus,GlowstoneMC/GlowstonePlusPlus,BlazePowered/Blaze-Server,jimmikaelkael/GlowstonePlusPlus,keke142/GlowstonePlusPlus,keke142/GlowstonePlusPlus,GlowstonePlusPlus/GlowstonePlusPlus,GlowstonePlusPlus/GlowstonePlusPlus,jimmikaelkael/GlowstonePlusPlus,BlazePowered/Blaze-Server,BlazePowered/Blaze-Server,GlowstoneMC/GlowstonePlusPlus,Postremus/GlowstonePlusPlus,keke142/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,GlowstoneMC/GlowstonePlusPlus,jimmikaelkael/GlowstonePlusPlus,GreenBeard/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,jimmikaelkael/GlowstonePlusPlus,GlowstoneMC/GlowstonePlusPlus,Postremus/GlowstonePlusPlus