gae-interop-testing: Remove duplicate repositories

These repositories are already included from the main build.gradle, so
they don't do anything. Much less do they need to be defined twice in
the same file.

Author: ejona86

gae-interop-testing/gae-jdk8/build.gradle

@@ -14,10 +14,6 @@
 
 buildscript {
     // Configuration for building
-    repositories {
-        maven { // The google mirror is less flaky than mavenCentral()
-            url "https://maven-central.storage-download.googleapis.com/maven2/" }
-    }
     dependencies {
         classpath 'com.squareup.okhttp:okhttp:2.7.4'
     }
@@ -33,13 +29,6 @@ plugins {
 
 description = 'gRPC: gae interop testing (jdk8)'
 
-repositories {
-    // repositories for Jar's you access in your code
-    mavenLocal()
-    maven { // The google mirror is less flaky than mavenCentral()
-        url "https://maven-central.storage-download.googleapis.com/maven2/" }
-}
-
 dependencies {
     providedCompile group: 'javax.servlet', name: 'servlet-api', version:'2.5'
     runtimeOnly 'com.google.appengine:appengine-api-1.0-sdk:1.9.59'