Revert "[SL-TEMP] Fix commissioning with test credentials (#366)" (#520)

Co-authored-by: Copilot <[email protected]>

Author: jmartinez-silabs

examples/platform/silabs/provision/BUILD.gn

@@ -22,12 +22,9 @@ if (wifi_soc) {
   import("${silabs_sdk_build_root}/efr32_sdk.gni")
 }
 
-# Seperate import since the matter_support_root is defined in the ef32_sdk.gni / SiWx917_sdk.gni
+# Separate import since the matter_support_root is defined in the ef32_sdk.gni / SiWx917_sdk.gni
 import("${matter_support_root}/provision/args.gni")
 source_set("storage") {
-  # SL-TEMP: CHIP_DEVICE_CONFIG_ENABLE_EXAMPLE_CREDENTIALS  is required for credentials fallback in ProvisionStorageXXX.
-  # The define is replaced by SL_MATTER_ENABLE_EXAMPLE_CREDENTIALS in matter 1.5.
-  defines = [ "CHIP_DEVICE_CONFIG_ENABLE_EXAMPLE_CREDENTIALS=1" ]
   sources = [ "ProvisionStorageCustom.cpp" ]
 
   if (use_provision_flash_storage) {