What was the point of removing the gba slot from the 3DS?

Let's Fix: Sad Nintendo DS Lite Wont Read Games ds lite gba slot Ability Patch can now revert a Pokémon's Hidden Ability back to the ability at its first slot Pokemon Big Blue GBA CompletedFireRedGBA dsobet slot The name dongle method is an unofficial name that comes from the fact that this method uses the Game Boy Advance game as a dongle for the Nintendo DS game

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