Tidy includes, drop PC STATIC_ASSERTs, and more macro usage

include/d/actor/d_a_mant.h

@@ -92,10 +92,7 @@ public:
     /* 0x39A4 */ cM_rnd_c mMantRng;
 #endif
 };
-#if TARGET_PC
-STATIC_ASSERT(sizeof(mant_class) == 0x39ac);
-#else
+
 STATIC_ASSERT(sizeof(mant_class) == 0x39a4);
-#endif
 
 #endif /* D_A_MANT_H */

include/d/actor/d_a_obj_gb.h

@@ -36,5 +36,4 @@ public:
 
 STATIC_ASSERT(sizeof(obj_gb_class) == 0x6bc);
 
-
 #endif /* D_A_OBJ_GB_H */

include/d/actor/d_a_obj_kita.h

@@ -17,7 +17,6 @@ public:
 
 STATIC_ASSERT(sizeof(kita_s) == 0x60);
 
-
 /**
  * @ingroup actors-objects
  * @class obj_kita_class

include/d/actor/d_a_obj_sm_door.h

@@ -53,5 +53,4 @@ public:
 
 STATIC_ASSERT(sizeof(daObjSM_DOOR_c) == 0x858);
 
-
 #endif /* D_A_OBJ_SM_DOOR_H */