[Optimization-4431] Dockerfile retains flink-table-planner-loader.jar (#4436)

Author: aiwenmo

deploy/docker/Dockerfile

@@ -10,7 +10,7 @@ ADD  build/dist/ /opt/dinky/config/static
 FROM flink:${FLINK_VERSION}-scala_2.12-java8
 ARG FLINK_VERSION
 COPY --from=builder /opt/dinky /opt/dinky
-RUN rm -f /opt/flink/lib/flink-table-planner-loader*.jar  &&  cp /opt/flink/opt/flink-python*.jar /opt/flink/lib/ && cp /opt/flink/opt/flink-table-planner*.jar /opt/flink/lib/ 2>/dev/null || : && ln -s /opt/flink/lib/*  /opt/dinky/extends/flink${FLINK_VERSION}/
+RUN cp /opt/flink/opt/flink-python*.jar /opt/flink/lib/ && cp /opt/flink/opt/flink-table-planner*.jar /opt/flink/lib/ 2>/dev/null || : && ln -s /opt/flink/lib/*  /opt/dinky/extends/flink${FLINK_VERSION}/
 ENV FLINK_VERSION=${FLINK_VERSION}
 ENV DINKY_HOME=/opt/dinky/
 ENV H2_DB=./tmp/db/h2

e2e_test/docker-compose-env/Dockerfile

@@ -17,7 +17,6 @@ WORKDIR /opt/dinky/
 
 USER root
 COPY --from=flink-base  /opt/flink/lib/*.jar  /opt/dinky/extends/flink${FLINK_VERSION}/flink/
-RUN rm -f  /opt/dinky/extends/flink${FLINK_VERSION}/flink/flink-table-planner-loader*.jar
 
 COPY --from=flink-base  /opt/flink/opt/flink-table-planner*.jar /opt/dinky/extends/flink${FLINK_VERSION}/flink/