remove 911x ncp file for the 917 ncp build

Author: mkardous-silabs

src/platform/silabs/wifi/rs911x/rs9117.gni

@@ -18,7 +18,6 @@ import("${silabs_sdk_build_root}/efr32_sdk.gni")
 
 rs911x_src_plat = [
   "${chip_root}/src/platform/silabs/wifi/SiWx/WifiInterface.cpp",
-  "${chip_root}/src/platform/silabs/wifi/rs911x/platform/rsi_hal_mcu_interrupt.c",
   "${chip_root}/src/platform/silabs/wifi/rs911x/platform/sl_si91x_ncp_utility.c",
   "${chip_root}/src/platform/silabs/wifi/rs911x/platform/sl_board_configuration.h",
   "${chip_root}/src/platform/silabs/wifi/wiseconnect-abstraction/WiseconnectInterfaceAbstraction.cpp",