Remove unused pymysql dependency

examples/digital_fingerprinting/production/.env.sample

@@ -1,10 +1,4 @@
 # NOTE: This file should be copied to `.env` in the same folder and updated for each user
-MYSQL_DATABASE="db"
-MYSQL_USER="mlflow"
-MYSQL_PASSWORD="good_password"
-MYSQL_ROOT_PASSWORD="even_better_password"
-MYSQL_ROOT_HOST="172.*.*.*"
-MYSQL_LOG_CONSOLE=1
 
 # Update these with your own credentials UID=$(id -u) GID=$(id -g)
 UID=1000

examples/digital_fingerprinting/production/mlflow/Dockerfile

@@ -24,7 +24,7 @@ RUN apt update && \
     rm -rf /var/cache/apt/* /var/lib/apt/lists/*
 
 # Install python packages
-RUN pip install "mlflow >=2.10.0,<3" boto3 pymysql pyyaml
+RUN pip install "mlflow >=2.10.0,<3" boto3 pyyaml
 
 # We run on port 5000
 EXPOSE 5000