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harmless or completely superseded PRs have been left alone, as there is not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/m4a_tables.c

@@ -83,7 +83,7 @@ const u8 gScaleTable[] =
     0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
 };
 
-const u32 gFreqTable[12] =
+const u32 gFreqTable[] =
 {
     2147483648u,
     2275179671u,
@@ -99,7 +99,7 @@ const u32 gFreqTable[12] =
     4053909305u,
 };
 
-const u16 gPcmSamplesPerVBlankTable[12] =
+const u16 gPcmSamplesPerVBlankTable[] =
 {
     96,
     132,
@@ -130,7 +130,7 @@ const u8 gCgbScaleTable[] =
     0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB,
 };
 
-const s16 gCgbFreqTable[12] =
+const s16 gCgbFreqTable[] =
 {
     -2004,
     -1891,