Remove initial setup and copyright from Dockerfile

Remove copyright information and Dockerfile setup.

Author: azariahporras-blip

.devcontainer/Dockerfile

@@ -1,16 +1 @@
-#  Copyright (c) Microsoft Corporation. All rights reserved.
-#  Licensed under the MIT License. See License.txt in the project root for license information.
-ARG VARIANT="20-bookworm"
-FROM mcr.microsoft.com/devcontainers/typescript-node:1-${VARIANT}
 
-RUN mkdir -p /workspaces && chown node:node /workspaces
-
-ARG USERNAME=node
-USER $USERNAME
-
-# Save command line history
-RUN echo "export HISTFILE=/home/$USERNAME/commandhistory/.bash_history" >> "/home/$USERNAME/.bashrc" \
-	&& echo "export PROMPT_COMMAND='history -a'" >> "/home/$USERNAME/.bashrc" \
-	&& mkdir -p /home/$USERNAME/commandhistory \
-	&& touch /home/$USERNAME/commandhistory/.bash_history \
-	&& chown -R $USERNAME /home/$USERNAME/commandhistory