arm64: dts: qcom: sc7180: Delete wormdingler-rev0

The earliest wormdingler I could find in my pile of hardware is
-rev1. I believe that -rev0 boards were just distributed as a pile of
components with no case. At this point I can't imagine anyone needing
to make wormdingler-rev0 work, so let's delete support for it.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230302131031.v2.1.Id0cd5120469eb200118c0c7b8ee8209f877767b4@changeid