tests: drivers: flash: flash_ipuc: do not use double ci tag

This will lead CI to skipping this test easily.

Signed-off-by: Piotr Kosycarz <[email protected]>

Author: nordic-piks

tests/drivers/flash/flash_ipuc/testcase.yaml

@@ -3,7 +3,6 @@ common:
     - drivers
     - flash
     - ci_tests_drivers_flash
-    - ci_tests_subsys_suit
 tests:
   drivers.flash.flash_ipuc:
     platform_allow: