samples: zephyr: drivers: spi_flash: Disable on nrf54lm20pdk

Original sample in the Zephyr repository is now executed on
final board name of nrf54lm20dk/nrf54lm20a/cpuapp.

Disable execution on obsolete nrf54lm20pdk target.

Signed-off-by: Sebastian Głąb <[email protected]>

Author: nordic-segl

samples/zephyr/drivers/spi_flash/sample.yaml

@@ -24,22 +24,3 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
     extra_args:
       - DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuapp_sqspi.overlay"
-  nrf.extended.sample.drivers.spi.flash:
-    filter: dt_compat_enabled("jedec,spi-nor") or dt_compat_enabled("nordic,qspi-nor")
-      or dt_compat_enabled("jedec,mspi-nor")
-    platform_allow:
-      - nrf54lm20pdk/nrf54lm20a/cpuapp
-      - [email protected]/nrf54lm20a/cpuapp
-      - [email protected]/nrf54lm20a/cpuapp
-    integration_platforms:
-      - nrf54lm20pdk/nrf54lm20a/cpuapp
-    harness_config:
-      fixture: external_flash
-      type: multi_line
-      ordered: true
-      regex:
-        - "Test 1: Flash erase"
-        - "Flash erase succeeded!"
-        - "Test 2: Flash write"
-        - "Attempting to write 4 bytes"
-        - "Data read matches data written. Good!!"