[NXP][platform] Remove deprecated files

Signed-off-by: marius-alex-tache <marius.tache@nxp.com>

Author: marius-alex-tache

src/platform/nxp/k32w1/BUILD.gn

@@ -94,8 +94,6 @@ static_library("nxp_platform") {
     "ConfigurationManagerImpl.h",
     "ConnectivityManagerImpl.cpp",
     "ConnectivityManagerImpl.h",
-    "DefaultTestEventTriggerDelegate.cpp",
-    "DefaultTestEventTriggerDelegate.h",
     "DiagnosticDataProviderImpl.cpp",
     "DiagnosticDataProviderImpl.h",
     "PlatformManagerImpl.cpp",
@@ -154,7 +152,6 @@ static_library("nxp_platform") {
     "${chip_root}/src/credentials/examples/ExampleDACs.h",
     "${chip_root}/src/credentials/examples/ExamplePAI.h",
     "${chip_root}/src/platform/nxp/k32w1/BLEManagerImpl.h",
-    "${chip_root}/src/platform/nxp/k32w1/DefaultTestEventTriggerDelegate.h",
     "${chip_root}/src/platform/nxp/k32w1/SMU2Manager.h",
   ]