[FLINK-3676][docs] sync docs with the WebClient removal

docs/apis/common/index.md

@@ -1348,11 +1348,12 @@ After these steps, a detailed execution plan will be visualized.
 
 __Web Interface__
 
-Flink offers a web interface for submitting and executing jobs. If you choose to use this interface to submit your packaged program, you have the option to also see the plan visualization.
+Flink offers a web interface for submitting and executing jobs. The interface is part of the JobManager's
+web interface for monitoring, per default running on port 8081. Job submission via this interfaces requires
+that you have set `jobmanager.web.submit.enable: true` in `flink-conf.yaml`.
 
-The script to start the webinterface is located under ```bin/start-webclient.sh```. After starting the webclient (per default on **port 8080**), your program can be uploaded and will be added to the list of available programs on the left side of the interface.
-
-You are able to specify program arguments in the textbox at the bottom of the page. Checking the plan visualization checkbox shows the execution plan before executing the actual program.
+You may specify program arguments before the job is executed. The plan visualization enables you to show
+the execution plan before executing the Flink job.
 
 {% top %}
 

flink-contrib/docker-flink/flink/conf/flink-conf.yaml

@@ -34,4 +34,3 @@ env.java.home: /usr/java/default
 #==============================================================================
 
 jobmanager.web.port: 8080
-webclient.port: 8081

flink-contrib/docker-flink/flink/config-flink.sh

@@ -35,7 +35,6 @@ if [ "$1" = "jobmanager" ]; then
  echo "Configuring Job Manager on this node"
  sed -i -e "s/%jobmanager%/`hostname -i`/g" $CONF/flink-conf.yaml
  $EXEC/jobmanager.sh start cluster
- $EXEC/start-webclient.sh
 
 elif [ "$1" = "taskmanager" ]; then
  echo "Configuring Task Manager on this node"