Removed trailing spaces in the most relevant files

Command used for the job:
egrep -rl ' $' --include *.c --include *.h --include  *.s --include  *.inc --include  *.txt *  | xargs sed -i 's/\s\+$//g'

Credits to Grant Murphy from Stack Overflow.

src/rotating_tile_puzzle.c

@@ -10,7 +10,7 @@
 
 #define ROTATE_COUNTERCLOCKWISE 0
 #define ROTATE_CLOCKWISE        1
-#define ROTATE_NONE             2 
+#define ROTATE_NONE             2
 
 struct RotatingTileObject
 {
@@ -129,7 +129,7 @@ u16 MoveRotatingTileObjects(u8 puzzleNumber)
             puzzleTileStart = METATILE_TrickHousePuzzle_Arrow_YellowOnWhite_Right;
 
         // Object is on a metatile before the puzzle tile section
-        // UB: Because this is not if (metatile < puzzleTileStart), for the trick house (metatile - puzzleTileStart) below can result in casting a negative value to u8 
+        // UB: Because this is not if (metatile < puzzleTileStart), for the trick house (metatile - puzzleTileStart) below can result in casting a negative value to u8
         if (metatile < METATILE_MossdeepGym_YellowArrow_Right)
             continue;
 
@@ -223,7 +223,7 @@ void TurnRotatingTileObjects(void)
         // Which means tileDifference will always either be -1 or 3 after the below subtraction, and rotation will always be ROTATE_COUNTERCLOCKWISE after the following conditionals
         tileDifference = (u8)((metatile - puzzleTileStart) % 8);
         tileDifference -= (sRotatingTilePuzzle->objects[i].prevPuzzleTileNum);
-        
+
         // Always true, see above
         if (tileDifference < 0 || tileDifference == 3)
         {