remove redundant SQ definitions

src/core2/code_7AF80.c

@@ -4,10 +4,9 @@
 
 #include <core1/viewport.h>
 #include <core2/file.h>
+#include <math.h>
 #include "prop.h"
 
-#define SQ(x) ((x) * (x))
-
 extern f32 ml_distanceSquared_vec3f(f32[3], f32[3]);
 extern f32 func_802586B0(f32[3], f32[3]);
 extern void mapModel_getCubeBounds(s32 min[3], s32 max[3]);

src/core2/code_D89E0.c

@@ -1,14 +1,11 @@
 #include <ultra64.h>
 #include "functions.h"
 #include "variables.h"
-
+#include <math.h>
 
 extern f32 mapModel_getFloorY(f32[3]);
 extern f32 func_80257204(f32, f32, f32, f32);
 
-#define SQ(x) ((x) * (x))
-
-
 typedef struct {
     f32 unk0;
     f32 unk4;