Remove sqlite package after it did its job

Dockerfile

@@ -4,12 +4,12 @@ RUN dnf install -y python3 python3-requests && \
     curl https://raw.githubusercontent.com/openstack/tripleo-repos/master/tripleo_repos/main.py | python3 - -b train current && \
     dnf update -y && \
     dnf install -y openstack-ironic-inspector crudini psmisc iproute sqlite && \
+    mkdir -p /var/lib/ironic-inspector && \
+    sqlite3 /var/lib/ironic-inspector/ironic-inspector.db "pragma journal_mode=wal" && \
+    dnf remove -y sqlite && \
     dnf clean all && \
     rm -rf /var/cache/{yum,dnf}/*
 
-RUN mkdir -p /var/lib/ironic-inspector && \
-    sqlite3 /var/lib/ironic-inspector/ironic-inspector.db "pragma journal_mode=wal"
-
 COPY ./inspector.conf /tmp/inspector.conf
 RUN crudini --merge /etc/ironic-inspector/inspector.conf < /tmp/inspector.conf && \
     rm /tmp/inspector.conf