drm/mediatek: mtk_hdmi: Cleanup function mtk_hdmi_resume()

Remove the error print in case of mtk_hdmi_clk_enable_audio()
failures: since the APIs will already print on their own, having
one in there is redundant.

Reviewed-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20250217154836.108895-34-angelogioacchino.delregno@collabora.com/


Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>