Undo PokeCodec's PRs

This commit undoes most of PokeCodec's PRs after the debate in chat. Some
harmless or completely superseded PRs have been left alone, as there is not
much benefit in attempting to undo them.

Reverts #1104, #1108, #1115, #1118, #1119, #1124, #1126, #1127, #1132, #1136,
#1137, #1139, #1140, #1144, #1148, #1149, #1150, #1153, #1155, #1177, #1179,
#1180, #1181, #1182 and #1183.

src/trainer_see.c

@@ -603,7 +603,7 @@ static void sub_80B44C8(u8 taskId)
     struct ObjectEvent *objEvent;
 
     // another objEvent loaded into by loadword?
-    LoadWordFromTwoHalfwords((u16*)&task->data[1], (u32 *)&objEvent);
+    LoadWordFromTwoHalfwords(&task->data[1], (u32 *)&objEvent);
     if (!task->data[7])
     {
         ObjectEventClearHeldMovement(objEvent);
@@ -624,7 +624,7 @@ static void sub_80B44C8(u8 taskId)
 
 void sub_80B4578(struct ObjectEvent *var)
 {
-    StoreWordInTwoHalfwords((u16 *)&gTasks[CreateTask(sub_80B44C8, 0)].data[1], (u32)var);
+    StoreWordInTwoHalfwords(&gTasks[CreateTask(sub_80B44C8, 0)].data[1], (u32)var);
 }
 
 void EndTrainerApproach(void)