Rename unk headers

src/ereader_helpers.c

@@ -1,6 +1,6 @@
 #include "global.h"
 #include "link.h"
-#include "unk_815c27c.h"
+#include "ereader_helpers.h"
 
 enum {
     EREADER_XFR_STATE_INIT,

src/sprite.c

@@ -1222,10 +1222,10 @@ u8 GetSpriteMatrixNum(struct Sprite *sprite)
     return matrixNum;
 }
 
-void obj_pos2_update_enable(struct Sprite* sprite, s16 a2, s16 a3)
+void obj_pos2_update_enable(struct Sprite* sprite, s16 xmod, s16 ymod)
 {
-    sprite->data[6] = a2;
-    sprite->data[7] = a3;
+    sprite->data[6] = xmod;
+    sprite->data[7] = ymod;
     sprite->flags_f = 1;
 }
 

src/vs_seeker.c

@@ -22,7 +22,6 @@
 #include "field_player_avatar.h"
 #include "event_object_80688E4.h"
 #include "event_object_8097404.h"
-#include "unk_810c3a4.h"
 #include "vs_seeker.h"
 #include "constants/movement_commands.h"
 #include "constants/object_events.h"