rm not need libs and submodules

Author: Jason2866

.gitmodules

@@ -4,21 +4,12 @@
 [submodule "tools/sdk/ssl/bearssl"]
 	path = tools/sdk/ssl/bearssl
 	url = https://github.com/earlephilhower/bearssl-esp8266.git
-[submodule "libraries/SoftwareSerial"]
-	path = libraries/SoftwareSerial
-	url = https://github.com/plerup/espsoftwareserial.git
 [submodule "libraries/LittleFS/lib/littlefs"]
 	path = libraries/LittleFS/lib/littlefs
 	url = https://github.com/ARMmbed/littlefs.git
 [submodule "libraries/ESP8266SdFat"]
 	path = libraries/ESP8266SdFat
 	url = https://github.com/earlephilhower/ESP8266SdFat.git
-[submodule "tools/pyserial"]
-	path = tools/pyserial
-	url = https://github.com/pyserial/pyserial.git
-[submodule "tools/esptool"]
-	path = tools/esptool
-	url = https://github.com/espressif/esptool.git
 [submodule "tools/sdk/uzlib"]
 	path = tools/sdk/uzlib
 	url = https://github.com/earlephilhower/uzlib.git