ASoC: es8328: Remove duplicate DAPM routes

ASoC: es8328: Remove duplicate DAPM routes

The DAPM routes for "Left Line Mux" and "Right Line Mux" are defined
twice in es8328_dapm_routes[]. The redundant entries appear after
the "Mic Bias" route and duplicate the definitions found earlier in
the array.

Remove the duplicate entries to clean up the code.

Tested on Rockchip RK3588 with ES8328 codec. Verified that removing
the duplicate routes does not alter the DAPM graph or the mixer
controls. Both 'tinymix' output and DAPM widget lists remain
identical to the baseline.

Signed-off-by: Hsieh Hung-En <hungen3108@gmail.com>
Link: https://patch.msgid.link/20251231084554.265916-1-hungen3108@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>