ASoC: rt5640: Fix duplicate clock properties in DT binding

Not quite overlapping changes to the rt5640 binding resulted in duplicate
definitions of the clocks and clock-names properties. Delete one of them,
preferring the simpler one.

Reported-by: Jon Hunter <jonathanh@nvidia.com>
Closes: https://lore.kernel.org/r/0e68c5f4-f68d-4544-bc7a-40694829db75@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20260114-asoc-fix-rt5640-dt-clocks-v1-1-421d438673c2@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: broonie

Documentation/devicetree/bindings/sound/realtek,rt5640.yaml

@@ -44,14 +44,6 @@ properties:
       - realtek,rt5640
       - realtek,rt5639
 
-  clocks:
-    items:
-      - description: phandle and clock specifier for codec MCLK.
-
-  clock-names:
-    items:
-      - const: mclk
-
   reg:
     maxItems: 1