Revert "drm/amd/pm: smu v13_0_6 supports ecc info by default"

This reverts commit 6fe08f56

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We use debug mode flag instead of this interface.

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>