core: remove deprecated WorldEntity member variables.

src/worldentity.cpp

@@ -30,12 +30,6 @@ WorldEntity::WorldEntity()
     m_velocity = vec3(0);
     m_rotation_velocity = vec3(0);
     m_bbox[0] = m_bbox[1] = vec3(0);
-
-    m_mousepos = ivec2(0);
-    m_mousebuttons = ivec3(0);
-    m_pressed = 0;
-    m_clicked = 0;
-    m_released = 0;
 }
 
 WorldEntity::~WorldEntity()

src/worldentity.h

@@ -33,10 +33,6 @@ public:
     vec3 m_rotation_velocity;
     vec3 m_bbox[2];
 
-    ivec2 m_mousepos;
-    ivec3 m_mousebuttons;
-    uint32_t m_pressed, m_clicked, m_released;
-
 protected:
     WorldEntity();
     virtual ~WorldEntity();