Stop autogenerating PantheonInfo.java (hyperledger#1899)

The version is now read from a manifest file so there's nothing dynamic about the file.
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>

build.gradle

@@ -139,7 +139,6 @@ allprojects {
         exclude '**/generalstate/GeneralStateReferenceTest*.java'
         exclude '**/generalstate/GeneralStateRegressionReferenceTest*.java'
         exclude '**/blockchain/BlockchainReferenceTest*.java'
-        exclude '**/pantheon/PantheonInfo.java'
         exclude '**/.gradle/**'
       }
       removeUnusedImports()

pantheon/build.gradle

@@ -73,14 +73,6 @@ dependencies {
   testImplementation 'org.apache.commons:commons-text'
 }
 
-task writeInfoFile(type: ProjectPropertiesFile) {
-  destPackage = "tech.pegasys.pantheon"
-  addString("clientIdentity", rootProject.name)
-  addVersion("version", "clientIdentity")
-}
-
-compileJava.dependsOn(writeInfoFile)
-
 task testJar(type: Jar) {
   archiveName 'testPlugins.jar'
   manifest {

pantheon/src/main/java/tech/pegasys/pantheon/PantheonInfo.java

@@ -1,8 +1,19 @@
+/*
+ * Copyright 2019 ConsenSys AG.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
 package tech.pegasys.pantheon;
 
 import tech.pegasys.pantheon.util.PlatformDetector;
 
-// This file is generated via a gradle task and should not be edited directly.
 public final class PantheonInfo {
   private static final String CLIENT_IDENTITY = "pantheon";
   private static final String VERSION =
@@ -16,10 +27,6 @@ public final class PantheonInfo {
 
   private PantheonInfo() {}
 
-  public static String clientIdentity() {
-    return CLIENT_IDENTITY;
-  }
-
   public static String version() {
     return VERSION;
   }