Document files with a few remaining symbols

src/confetti_util.c

@@ -10,43 +10,6 @@ static EWRAM_DATA struct
     struct ConfettiUtil *array;
 } *sWork = NULL;
 
-static void sub_81520A8(void *dest, u16 value, u8 left, u8 top, u8 width, u8 height) // Unused.
-{
-    u8 i;
-    u8 j;
-    u8 x;
-    u8 y;
-
-    for (i = 0, y = top; i < height; i++)
-    {
-        for (x = left, j = 0; j < width; j++)
-        {
-            *(u16 *)((dest) + (y * 64 + x * 2)) = value;
-            x = (x + 1) % 32;
-        }
-        y = (y + 1) % 32;
-    }
-}
-
-static void sub_8152134(void *dest, const u16 *src, u8 left, u8 top, u8 width, u8 height) // Unused.
-{
-    u8 i;
-    u8 j;
-    u8 x;
-    u8 y;
-    const u16 *_src;
-
-    for (i = 0, _src = src, y = top; i < height; i++)
-    {
-        for (x = left, j = 0; j < width; j++)
-        {
-            *(u16 *)((dest) + (y * 64 + x * 2)) = *(_src++);
-            x = (x + 1) % 32;
-        }
-        y = (y + 1) % 32;
-    }
-}
-
 bool32 ConfettiUtil_Init(u8 count)
 {
     u8 i = 0;