Switch uses of MIN() to SDL_min()

We're excluding files in src/hidapi to minimize the
diff against the upstream project.

src/render/software/SDL_rotate.c

@@ -61,11 +61,6 @@ typedef struct tColorY {
     Uint8 y;
 } tColorY;
 
-/* !
-\brief Returns maximum of two numbers a and b.
-*/
-#define MAX(a,b)    (((a) > (b)) ? (a) : (b))
-
 /* !
 \brief Number of guard rows added to destination surfaces.
 

src/render/software/SDL_rotate.h

@@ -22,10 +22,6 @@
 #ifndef SDL_rotate_h_
 #define SDL_rotate_h_
 
-#ifndef MIN
-#define MIN(a,b)    (((a) < (b)) ? (a) : (b))
-#endif
-
 extern SDL_Surface *SDLgfx_rotateSurface(SDL_Surface * src, double angle, int smooth, int flipx, int flipy,
         const SDL_Rect *rect_dest, double cangle, double sangle, const SDL_FPoint *center);
 extern void SDLgfx_rotozoomSurfaceSizeTrig(int width, int height, double angle, const SDL_FPoint *center,