remove file added in wrong conflict resolve

.devcontainer/app/Dockerfile

@@ -1,59 +0,0 @@
-#-------------------------------------------------------------------------------------------------------------
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the MIT License. See https://go.microsoft.com/fwlink/?linkid=2090316 for license information.
-#-------------------------------------------------------------------------------------------------------------
-
-FROM mcr.microsoft.com/vscode/devcontainers/javascript-node:0-20
-
-# The node image includes a non-root user with sudo access. Use the
-# "remoteUser" property in devcontainer.json to use it. On Linux, update
-# these values to ensure the container user's UID/GID matches your local values.
-# See https://aka.ms/vscode-remote/containers/non-root-user for details.
-ARG USERNAME=node
-ARG USER_UID=1000
-ARG USER_GID=$USER_UID
-
-RUN mkdir -p /workspace/growi/node_modules
-RUN mkdir -p /workspace/growi/apps/app/node_modules
-RUN mkdir -p /workspace/growi/apps/slackbot-proxy/node_modules
-RUN mkdir -p /workspace/growi/apps/app/.next
-
-# [Optional] Update UID/GID if needed
-RUN if [ "$USER_GID" != "1000" ] || [ "$USER_UID" != "1000" ]; then \
-        groupmod --gid $USER_GID $USERNAME \
-        && usermod --uid $USER_UID --gid $USER_GID $USERNAME; \
-    fi
-RUN chown -R $USER_UID:$USER_GID /home/$USERNAME /workspace;
-
-# *************************************************************
-# * Uncomment this section to use RUN instructions to install *
-# * any needed dependencies after executing "apt-get update". *
-# * See https://docs.docker.com/engine/reference/builder/#run *
-# *************************************************************
-ENV DEBIAN_FRONTEND=noninteractive
-
-# Prepare to install Chrome for VRT
-RUN sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'
-RUN wget -q -O - https://dl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
-
-RUN apt-get update \
-    && apt-get -y install --no-install-recommends \
-      git-lfs \
-      iputils-ping net-tools dnsutils \
-
-    # Uncomment below lines to install Chromium
-    # --- works only on AMD64 ---
-    # && apt-get -y install --no-install-recommends chromium \
-    #    libgtk2.0-0 libgtk-3-0 libgbm-dev libnotify-dev libgconf-2-4 libnss3 libxss1 libasound2 libxtst6 xauth xvfb fonts-noto-cjk \
-
-    # Clean up
-    && apt-get autoremove -y \
-    && apt-get clean -y \
-    && rm -rf /var/lib/apt/lists/*
-ENV DEBIAN_FRONTEND=dialog
-
-RUN yarn global add turbo
-RUN yarn global add node-gyp
-
-# Uncomment to default to non-root user
-# USER $USER_UID