Replace JSON properties files to Yaml from docker images

POLICY-3469: Replace JSON properties files to Yaml from docker images
Change-Id: I23fbd9d84640286725440453d464c397e3144662
Signed-off-by: FrancescoFioraEst <francesco.fiora@est.tech>
diff --git a/packages/policy-clamp-docker/src/main/docker/PolicyParticipantDockerfile b/packages/policy-clamp-docker/src/main/docker/PolicyParticipantDockerfile
index 3c20822..8eca34d 100644
--- a/packages/policy-clamp-docker/src/main/docker/PolicyParticipantDockerfile
+++ b/packages/policy-clamp-docker/src/main/docker/PolicyParticipantDockerfile
@@ -34,15 +34,16 @@
     chown -R policy:policy $POLICY_HOME $POLICY_LOGS && \
     mkdir /packages
 COPY /maven/lib/policy-participant.tar.gz /packages
+
 RUN tar xvfz /packages/policy-participant.tar.gz --directory $POLICY_HOME && \
-    rm /packages/policy-participant.tar.gz && \
-    rm -rf $POLICY_HOME/lib
+    rm /packages/policy-participant.tar.gz
 
 WORKDIR $POLICY_HOME
 COPY policy-participant.sh  bin/.
 COPY /maven/app.jar /app
 
-RUN chown -R policy:policy * && chmod 755 bin/*.sh && \
+RUN chown -R policy:policy * && \
+    chmod 755 bin/*.sh && \
     chown -R policy:policy /app
 
 USER policy