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/fldeff_escalator.c

@@ -71,7 +71,7 @@ static void SetEscalatorMetatile(u8 taskId, const s16 *metatileIds, u16 metatile
     s16 i;
     s16 j;
 
-    // Check all the escalator sections and only progress the selected one to the next stage    
+    // Check all the escalator sections and only progress the selected one to the next stage
     if (!gTasks[taskId].tGoingUp)
     {
         for (i = 0; i < 3; i++)
@@ -178,7 +178,7 @@ void StopEscalator(void)
 
 bool8 IsEscalatorMoving(void)
 {
-    if (gTasks[sEscalatorAnim_TaskId].tDrawingEscalator == FALSE 
+    if (gTasks[sEscalatorAnim_TaskId].tDrawingEscalator == FALSE
      && gTasks[sEscalatorAnim_TaskId].tTransitionStage == LAST_ESCALATOR_STAGE)
         return FALSE;
     else