Delete Java's README.md

It is documentation for examples that don't exist in grpc-common. It will only confuse people.

java/README.md

@@ -1,48 +0,0 @@
-gRPC in 3 minutes (Java)
-========================
-
-PREREQUISITES
--------------
-
-- [Java 8](http://docs.oracle.com/javase/8/docs/technotes/guides/install/install_overview.html)
-
-- [Maven 3.2 or later](http://maven.apache.org/download.cgi).
-  - this is needed to install Netty, a dependency of gRPC
-
-INSTALL
--------
-
-1 Clone the gRPC Java git repo
-```sh
-$ cd <path/to/your/working_dir>
-$ git clone https://github.com/grpc/grpc-java
-```
-
-2 Install gRPC Java, as described in [How to Build](https://github.com/grpc/grpc-java#how-to-build)
-```sh
-$ # from this dir
-$ cd grpc-java
-$ # follow the instructions in 'How to Build'
-```
-
-TRY IT!
--------
-
-Our [Gradle build file](https://github.com/grpc/grpc-java/blob/master/examples/build.gradle) simplifies building and running the examples.
-
-You can build and run the Hello World server used in [Getting started](https://github.com/grpc/grpc-common) from the `grpc-java` root folder with:
-
-```sh
-$ ./gradlew :grpc-examples:helloWorldServer
-```
-
-and in another terminal window confirm that it receives a message.
-
-```sh
-$  ./gradlew :grpc-examples:helloWorldClient
-```
-
-TUTORIAL
---------
-
-You can find a more detailed tutorial in [gRPC Basics: Java](https://github.com/grpc/grpc-common/blob/master/java/javatutorial.md).