Update Dockerfile

Dockerfile

@@ -49,10 +49,6 @@ tar xf vscode-cli.tar.gz && \
 chmod +x code && \
 ./code --version && \
 sudo mv code /usr/local/bin/code &&\
-wget -O flutter_code.tar.gz https://storage.googleapis.com/flutter_infra_release/releases/stable/linux/flutter_linux_3.41.0-stable.tar.xz && \
-tar xf flutter_code.tar.gz && \
-echo 'export PATH="$PATH:/home/good/flutter/bin"' >> ~/.bashrc && \
-rm flutter_code.tar.gz && \
 rm vscode-cli.tar.gz 
 
 EXPOSE 7860