Fix script init.sh for error: component 'rustfmt' for target 'x86_64-…

[TrinhKien94]

When I run command
sudo docker run -it --rm --name substrate-ssvm -p 9944:9944 -v $(pwd):/root/node -w /root/node/substrate-ssvm-node secondstate/substrate-ssvm:latest /bin/bash -c "make init && make build && cargo run --release --bin ssvm-node -- --dev --ws-external"
It have an error:
error: component 'rustfmt' for target 'x86_64-unknown-linux-gnu' is unavailable for download for channel nightly
Sometimes not all components are available in any given nightly. If you don't need the component, you can remove it with:

rustup component remove --toolchain nightly --target x86_64-unknown-linux-gnu rustfmt

make: *** [Makefile:3: init] Error 1

Reason: I think the lastest of docker image of secondstate/substrate-ssvm have problem with rust

Solution: uninstall chain and reinstall tool chain.