samples: 802154_phy_test: Remove nrf54h20dk support

Remove nrf54h20dk/nrf54h20/cpurad platform support for
802154_phy_test sample.yaml configuration
Ref: KRKNWK-20094

Signed-off-by: Dawid Przybylo <[email protected]>

Author: dawidprzybylo

samples/peripheral/802154_phy_test/README.rst

@@ -925,9 +925,6 @@ Building and running
    This sample uses the :ref:`shell_ipc_readme` library to forward shell data through the physical UART interface of the application core.
    The Remote IPC shell sample is built and programmed automatically by default.
 
-.. note::
-   |54H_engb_2_8|
-
 .. _802154_phy_test_testing:
 
 Testing the sample

samples/peripheral/802154_phy_test/sample.yaml

@@ -11,14 +11,12 @@ tests:
       - nrf21540dk/nrf52840
       - nrf5340dk/nrf5340/cpunet
       - nrf54l15dk/nrf54l15/cpuapp
-      - nrf54h20dk/nrf54h20/cpurad
     platform_allow:
       - nrf52833dk/nrf52833
       - nrf52840dk/nrf52840
       - nrf21540dk/nrf52840
       - nrf5340dk/nrf5340/cpunet
       - nrf54l15dk/nrf54l15/cpuapp
-      - nrf54h20dk/nrf54h20/cpurad
     tags:
       - ci_build
       - ci_rs_build