Unify the location of libary versions.

Test: ./gradlew buildOnServer
Change-Id: Ic6edd16441b2b649424b47829b46b8f67453ba40
diff --git a/buildSrc/init.gradle b/buildSrc/init.gradle
index b35123c..b9f85d3 100644
--- a/buildSrc/init.gradle
+++ b/buildSrc/init.gradle
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+import android.support.LibraryVersions
 import com.android.build.gradle.internal.coverage.JacocoPlugin
 import com.android.build.gradle.internal.coverage.JacocoReportTask
 import com.android.build.gradle.internal.tasks.DeviceProviderInstrumentTestTask
@@ -38,10 +39,6 @@
         dataname: "SUPPORT_DATA"
 ]
 
-def loadDefaultVersions() {
-    apply from: "${supportRootFolder}/buildSrc/versions.gradle"
-}
-
 def enableDoclavaAndJDiff(p) {
     p.configurations {
         doclava
@@ -170,7 +167,7 @@
         project.ext.currentSdk = gradle.ext.currentSdk
         apply plugin: 'maven'
 
-        version = rootProject.ext.supportVersion
+        version = LibraryVersions.SUPPORT_LIBRARY.toString();
         group = 'com.android.support'
 
         project.plugins.whenPluginAdded { plugin ->
@@ -361,6 +358,5 @@
 ext.init.setSdkInLocalPropertiesFile = this.&setSdkInLocalPropertiesFile
 ext.init.setupRepoOutAndBuildNumber = this.&setupRepoOutAndBuildNumber
 ext.init.setupRelease = this.&setupRelease
-ext.init.loadDefaultVersions = this.&loadDefaultVersions
 ext.init.configureSubProjects = this.&configureSubProjects
 ext.init.configureBuildOnServer = this.&configureBuildOnServer