Removed useless version param on 'core uninstall'

[cmaglie]

/cc @per1234

[per1234]

This line should be removed:

arduino-cli/daemon/client/client.go

Line 345 in 982a271

//Version: "1.6.19",

---

This line:

arduino-cli/cli/core/uninstall.go

Line 35 in 982a271

Use: "uninstall PACKAGER:ARCH[@VERSION] ...",

Should be changed to:

		Use:     "uninstall PACKAGER:ARCH ...",

[ArduinoBot]

✅ Build completed.

⬇️ Linux 64: https://downloads.arduino.cc/PR/arduino-cli/arduino-cli-59-PR224-linux64.tar.bz2

⬇️ Linux 32: https://downloads.arduino.cc/PR/arduino-cli/arduino-cli-59-PR224-linux32.tar.bz2

⬇️ Linux ARM: https://downloads.arduino.cc/PR/arduino-cli/arduino-cli-59-PR224-linuxarm.tar.bz2

⬇️ Windows: https://downloads.arduino.cc/PR/arduino-cli/arduino-cli-59-PR224-windows.zip

⬇️ OSX: https://downloads.arduino.cc/PR/arduino-cli/arduino-cli-59-PR224-osx.zip

ℹ️ To test this build:

1. Just replace arduino-cli binary with the provided one

[per1234]

I can't actually test this due to the issue I reported in CLI-15, but I am satisfied that my requested changes were made. Thanks!