Remove java tutorial, link to FDK (#504)

examples/tutorial/hello/java/Func.java

@@ -1,13 +0,0 @@
-import java.io.*;
-
-public class Func {
-    public static void main(String[] args) throws IOException {
-        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
-
-        String name = bufferedReader.readLine();
-        name = (name == null) ? "world"  : name;
-
-        System.out.println("Hello, " + name + "!");
-    }
-
-}

examples/tutorial/hello/java/README.md

@@ -1,51 +1,3 @@
 # Fn: Java
-This example will show you how to test and deploy Java code to Fn. It will also demonstrate passing data in through stdin.
 
-### First, run the following commands:
-
-```sh
-# Initialize your function creating a func.yaml file
-fn init --name hello-java --runtime java
-
-# Test your function. This will run inside a container exactly how it will on the server
-fn run
-
-# Now try with an input
-echo "Michael FassBender" | fn run
-
-# Deploy your functions to the Fn server (default localhost:8080)
-# This will create a route to your function as well
-fn deploy --app myapp
-```
-
-### Now call your function:
-
-```sh
-curl http://localhost:8080/r/myapp/hello-java
-```
-
-Or call from a browser: [http://localhost:8080/r/myapp/hello-java](http://localhost:8080/r/myapp/hello-java)
-
-That's it!
-
-
-# In Review
-
-1. We passed in data through stdin
-    ```sh
-    echo "Michael FassBender" | fn run
-    ```
-
-2. We received our function input through **stdin**
-    ```go
-    String name = bufferedReader.readLine();
-    ```
-
-3. We wrote our output to **stdout**
-    ```go
-    System.out.println("Hello, " + name + "!");
-    ```
-
-
-# Next Up
-## [Part 2: Input Parameters](../../params)
+To learn how to build Java functions check out the [Fn Java FDK](https://github.com/fnproject/fdk-java)