dt-bindings: clock: drop NUM_CLOCKS define for EN7581

Drop NUM_CLOCKS define for EN7581 include. This is not a binding and
should not be placed here. Value is derived internally in the user
driver.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250113231030.6735-3-ansuelsmth@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

include/dt-bindings/clock/en7523-clk.h

@@ -12,6 +12,4 @@
 #define EN7523_CLK_CRYPTO	6
 #define EN7523_CLK_PCIE		7
 
-#define EN7523_NUM_CLOCKS	8
-
 #endif /* _DT_BINDINGS_CLOCK_AIROHA_EN7523_H_ */