Resolved bug 1293 - Remove all references of peewee, mysql, libmysql-dev as mysql is not supported anymore.

Change-Id: Iab527c7b76d7c5a47cbe653686ae32381f91b414
Signed-off-by: agarwalat <atul.agarwal@altran.com>
diff --git a/Dockerfile b/Dockerfile
index db227e7..376bb2b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -25,5 +25,5 @@
 FROM ubuntu:18.04
 RUN  apt-get update && \
   DEBIAN_FRONTEND=noninteractive apt-get --yes install git tox make python-all python3 python3-pip debhelper wget && \
-  DEBIAN_FRONTEND=noninteractive apt-get --yes install libmysqlclient-dev libxml2 python3-all libssl-dev && \
+  DEBIAN_FRONTEND=noninteractive apt-get --yes install libxml2 python3-all libssl-dev && \
   DEBIAN_FRONTEND=noninteractive pip3 install -U setuptools setuptools-version-command stdeb