Help steer new users away from copying our build.gradle

The jsonp dependency string is no longer shared because it was only used
in one place and someone trying to compile the examples using a new
build.gradle will need to add that dependency. It was a bit complex to
follow how libraries.jsonp worked and it wasn't really adding any value
in this particular case.

build.gradle

@@ -135,7 +135,6 @@ subprojects {
                 // used to collect benchmark results
                 hdrhistogram: 'org.hdrhistogram:HdrHistogram:2.1.4',
                 hpack: 'com.twitter:hpack:0.10.1',
-                jsonp: 'org.glassfish:javax.json:1.0.4',
                 jsr305: 'com.google.code.findbugs:jsr305:3.0.0',
                 oauth_client: 'com.google.auth:google-auth-library-oauth2-http:0.3.0',
                 okhttp: 'com.squareup.okhttp:okhttp:2.5.0',

examples/build.gradle

@@ -1,3 +1,14 @@
+// Don't consider this build file part of the example! It is much more complex
+// than yours needs to be. For your own build file, please follow ../README.md
+// instead. For a starting point you can make a build.gradle file with:
+//
+//   apply plugin: 'java'
+//   repositories {
+//     mavenCentral()
+//   }
+//
+// Then copy the snippets from README.md.
+
 apply plugin: 'application'
 
 description = "grpc Examples"
@@ -18,7 +29,7 @@ dependencies {
             project(':grpc-netty'),
             project(':grpc-protobuf'),
             project(':grpc-stub'),
-            libraries.jsonp
+            'org.glassfish:javax.json:1.0.4'
 }
 
 configureProtoCompilation()