[docs] Update obsolate cluster execution guide

Closes apache#835

docs/apis/cluster_execution.md

@@ -60,7 +60,7 @@ The following illustrates the use of the `RemoteEnvironment`:
 ~~~java
 public static void main(String[] args) throws Exception {
     ExecutionEnvironment env = ExecutionEnvironment
-        .createRemoteEnvironment("strato-master", "7661", "/home/user/udfs.jar");
+        .createRemoteEnvironment("flink-master", 6123, "/home/user/udfs.jar");
 
     DataSet<String> data = env.readTextFile("hdfs://path/to/file");
 
@@ -80,71 +80,6 @@ Note that the program contains custom user code and hence requires a JAR file wi
 the classes of the code attached. The constructor of the remote environment
 takes the path(s) to the JAR file(s).
 
-## Remote Executor
-
-Similar to the RemoteEnvironment, the RemoteExecutor lets you execute
-Flink programs on a cluster directly. The remote executor accepts a
-*Plan* object, which describes the program as a single executable unit.
-
-### Maven Dependency
-
-If you are developing your program in a Maven project, you have to add the
-`flink-clients` module using this dependency:
-
-~~~xml
-<dependency>
-  <groupId>org.apache.flink</groupId>
-  <artifactId>flink-clients</artifactId>
-  <version>{{ site.version }}</version>
-</dependency>
-~~~
-
-### Example
-
-The following illustrates the use of the `RemoteExecutor` with the Scala API:
-
-~~~scala
-def main(args: Array[String]) {
-    val input = TextFile("hdfs://path/to/file")
-
-    val words = input flatMap { _.toLowerCase().split("""\W+""") filter { _ != "" } }
-    val counts = words groupBy { x => x } count()
-
-    val output = counts.write(wordsOutput, CsvOutputFormat())
-
-    val plan = new ScalaPlan(Seq(output), "Word Count")
-    val executor = new RemoteExecutor("strato-master", 7881, "/path/to/jarfile.jar")
-    executor.executePlan(p);
-}
-~~~
-
-The following illustrates the use of the `RemoteExecutor` with the Java API (as
-an alternative to the RemoteEnvironment):
-
-~~~java
-public static void main(String[] args) throws Exception {
-    ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
-
-    DataSet<String> data = env.readTextFile("hdfs://path/to/file");
-
-    data
-        .filter(new FilterFunction<String>() {
-            public boolean filter(String value) {
-                return value.startsWith("http://");
-            }
-        })
-        .writeAsText("hdfs://path/to/result");
-
-    Plan p = env.createProgramPlan();
-    RemoteExecutor e = new RemoteExecutor("strato-master", 7881, "/path/to/jarfile.jar");
-    e.executePlan(p);
-}
-~~~
-
-Note that the program contains custom UDFs and hence requires a JAR file with
-the classes of the code attached. The constructor of the remote executor takes
-the path(s) to the JAR file(s).
-
 ## Linking with modules not contained in the binary distribution
 
 The binary distribution contains jar packages in the `lib` folder that are automatically