Update LittleFS PlatformIO example (espressif#6617)

Author: Jason2866

libraries/LittleFS/examples/LITTLEFS_PlatformIO/platformio.ini

@@ -16,17 +16,6 @@ framework = arduino
 
 [env:esp32]
 platform = espressif32
-;platform = https://github.com/platformio/platform-espressif32.git
-;board_build.mcu = esp32
-platform_packages = framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32.git
-
-build_flags = 
-	${env.build_flags} 
-	-D=${PIOENV} 
-	;-D CONFIG_LITTLEFS_FOR_IDF_3_2
-
-lib_deps = https://github.com/lorol/LITTLEFS.git
-
 board = esp32dev
 ;board_build.partitions = partitions_custom.csv
 monitor_filters = esp32_exception_decoder