Remove hello_world_nanosoc

nanosoc_board/C_Cxx/hello_world/CMakeLists.txt

 add_subdirectory(screen)
 add_subdirectory(usb)
 add_subdirectory(sdcard)
-add_subdirectory(nanosoc)
 add_subdirectory(nanosoc_serial)
 add_subdirectory(nanosoc_adp)
\ No newline at end of file

nanosoc_board/C_Cxx/hello_world/nanosoc/CMakeLists.txt

-if (TARGET tinyusb_device)
-    add_executable(hello_world_nanosoc
-        hello_world_nanosoc.c
-        )
-
-    # Create C header file with the name <pio program>.pio.h
-    pico_generate_pio_header(hello_world_nanosoc  
-        ${SOCLABS_PIO_PATH}/ft1248x1/ft1248x1_sm.pio
-    )
-    # pull in common dependencies
-    target_link_libraries(hello_world_nanosoc
-         pico_stdlib
-         hardware_pio)
-
-    # enable usb output, disable uart output
-    pico_enable_stdio_usb(hello_world_nanosoc 1)
-    pico_enable_stdio_uart(hello_world_nanosoc 0)
-
-    # create map/bin/hex/uf2 file etc.
-    pico_add_extra_outputs(hello_world_nanosoc)
-
-    # add url via pico_set_program_url
-elseif(PICO_ON_DEVICE)
-    message(WARNING "not building hello_world_nanosoc because TinyUSB submodule is not initialized in the SDK")
-endif()

nanosoc_board/C_Cxx/hello_world/nanosoc/hello_world_nanosoc.c

-#include <stdio.h>
-#include "pico/stdlib.h"
-#include "hardware/pio.h"
-#include "hardware/clocks.h"
-#include "ft1248x1_sm.pio.h"
-
-int main(){
-    stdio_init_all();
-    sleep_ms(500);
-
-    PIO pio = pio0;
-
-    if(pio_sm_is_claimed(pio,0))
-    {
-        while(1){
-            printf("ERROR: SM 0 ALREADY CLAIMED\n");
-            sleep_ms(200);
-        }
-    }
-    else {
-        printf("Hello, world! From RP2040\n");
-        ft1248x1_sm_program_init(pio);
-        while(1){
-            while(pio_sm_is_rx_fifo_empty(pio,0)){
-                printf("PC = %d\n", pio_sm_get_pc(pio,0));
-                sleep_ms(500);
-                pio_sm_restart(pio,0);
-            }
-            uint32_t c = pio_sm_get(pio, 0);
-            printf("%d", c);
-        }
-    }
-}
\ No newline at end of file