arm64: dts: qcom: sdm845-db845c-navigation-mezzanine: remove disabled ov7251 camera

arm64: dts: qcom: sdm845-db845c-navigation-mezzanine: remove disabled ov7251 camera

The ov7251node has bindings check errors in the endpoint, and the
camera node was disabled since the beginning. Even when switching the
node to okay, the endpoint description to the csiphy is missing along
with the csiphy parameters.

Drop the ov7251 camera entirely until it's properly described.

This obviously fixes:
sdm845-db845c-navigation-mezzanine.dtso: camera@60: port:endpoint:data-lanes: [0, 1] is too long
	from schema $id: http://devicetree.org/schemas/media/i2c/ovti,ov7251.yaml#

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20241230-topic-misc-dt-fixes-v4-2-1e6880e9dda3@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>