zephyr: test: kingler: remove duplicated dts nodes
zephyr: test: kingler: remove duplicated dts nodes

Fixes:
  devicetree error: ././common.dts:59 (column 22): parse error:
  /named-i2c-ports/sensor: duplicate node name

The check has been introduced recently upstream.

BRANCH=none
BUG=none
TEST=./twister  -v -T zephyr/test/kingler -c

Signed-off-by: Fabio Baltieri <1c55e39c05d9ab42261288cf330256b2af6ba179@google.com>
Cq-Depend: chromium:3912957
Change-Id: I95035c5aef51df3f9cd91883b4a805dcc787874b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3919030
Reviewed-by: Jonathon Murphy <ef000d5e2b938b44ac60c709bf9862f8d0f6bdc2@google.com>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec