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/event_object_movement.c

@@ -1891,7 +1891,7 @@ const struct ObjectEventGraphicsInfo *GetObjectEventGraphicsInfo(u8 graphicsId)
     {
         graphicsId = OBJ_EVENT_GFX_NINJA_BOY;
     }
-    
+
     return gObjectEventGraphicsInfoPointers[graphicsId];
 }
 
@@ -7497,7 +7497,7 @@ static void ObjectEventUpdateMetatileBehaviors(struct ObjectEvent *objEvent)
 
 static void GetGroundEffectFlags_Reflection(struct ObjectEvent *objEvent, u32 *flags)
 {
-    u32 reflectionFlags[NUM_REFLECTION_TYPES - 1] = { 
+    u32 reflectionFlags[NUM_REFLECTION_TYPES - 1] = {
         [REFL_TYPE_ICE   - 1] = GROUND_EFFECT_FLAG_ICE_REFLECTION,
         [REFL_TYPE_WATER - 1] = GROUND_EFFECT_FLAG_WATER_REFLECTION
     };
@@ -7715,7 +7715,7 @@ static u8 ObjectEventGetNearbyReflectionType(struct ObjectEvent *objEvent)
             RETURN_REFLECTION_TYPE_AT(objEvent->previousCoords.x - j, objEvent->previousCoords.y + one + i)
         }
     }
-    
+
     return REFL_TYPE_NONE;
 }