[FAB-3391] cleanup java shim whitespace

Did not clean up the org.hyperledger.fabric.shim.fsm
package as we expect to get rid of it in the future.

Change-Id: Idaf4dde32f9e55ef978d805977b9e18433af6973
Signed-off-by: Luis Sanchez <sanchezl@us.ibm.com>

core/chaincode/shim/java/src/main/java/org/hyperledger/fabric/shim/Chaincode.java

@@ -19,15 +19,15 @@
  * Defines methods that all chaincodes must implement.
  */
 public interface Chaincode {
-    /**
-     * Called during an instantiate transaction after the container
-     * has been established, allowing the chaincode to initialize
-     * its internal data.
-     */
-    public Response init(ChaincodeStub stub);
-    /**
-     * Called for every Invoke transaction. The chaincode may change 
-     * its state variables.
-     */
-    public Response invoke(ChaincodeStub stub);
+	/**
+	 * Called during an instantiate transaction after the container has been
+	 * established, allowing the chaincode to initialize its internal data.
+	 */
+	public Response init(ChaincodeStub stub);
+
+	/**
+	 * Called for every Invoke transaction. The chaincode may change its state
+	 * variables.
+	 */
+	public Response invoke(ChaincodeStub stub);
 }