remove unnecessary Dockerfile.bak file

Dockerfile.bak

@@ -1,31 +0,0 @@
-# ./Dockerfile
-
-# Extend from the official Elixir image
-FROM elixir:1.13.4-otp-25-alpine
-
-# # install the package postgresql-client to run pg_isready within entrypoint script
-# RUN apt-get update && \
-#   apt-get install -y postgresql-client
-
-# Create app directory and copy the Elixir project into it
-RUN mkdir /app
-COPY . /app
-WORKDIR /app
-
-# Install the build tools we'll need
-RUN apk update && \
-  apk upgrade --no-cache && \
-  apk add --no-cache \
-    build-base && \
-  mix local.rebar --force && \
-  mix local.hex --force
-
-
-# The environment to build with
-ENV MIX_ENV=prod
-
-# Get deps and compile
-RUN mix do deps.get, deps.compile, compile
-
-# Start command
-CMD = ["/app/entrypoint.sh"]