ARM: dts: s5pv210: remove empty camera pinctrl configuration

The camera's pinctrl configuration is simply empty and not effective.
Remove it to fix dtbs_check warnings like:

  s5pv210-torbreck.dtb: camera@fa600000: pinctrl-0: True is not of type 'array'

Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20230421190202.15471-1-krzysztof.kozlowski@linaro.org


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>