[Build] Remove spark-staging-1038

Author: scwf <wangfei1@huawei.com>

Closes #3743 from scwf/abc and squashes the following commits:

7d98bc8 [scwf] removing spark-staging-1038

pom.xml

@@ -230,18 +230,6 @@
         <enabled>false</enabled>
       </snapshots>
     </repository>
-    <!-- TODO: remove this as soon as 1.2.0 is published on Maven central -->
-    <repository>
-      <id>spark-staging-1038</id>
-      <name>Spark 1.2.0 Staging (1038)</name>
-      <url>https://repository.apache.org/content/repositories/orgapachespark-1038/</url>
-      <releases>
-        <enabled>true</enabled>
-      </releases>
-      <snapshots>
-        <enabled>false</enabled>
-      </snapshots>
-    </repository>
   </repositories>
   <pluginRepositories>
     <pluginRepository>

project/SparkBuild.scala

@@ -214,8 +214,6 @@ object OldDeps {
   def oldDepsSettings() = Defaults.coreDefaultSettings ++ Seq(
     name := "old-deps",
     scalaVersion := "2.10.4",
-    // TODO: remove this as soon as 1.2.0 is published on Maven central.
-    resolvers += "spark-staging-1038" at "https://repository.apache.org/content/repositories/orgapachespark-1038/",
     retrieveManaged := true,
     retrievePattern := "[type]s/[artifact](-[revision])(-[classifier]).[ext]",
     libraryDependencies := Seq("spark-streaming-mqtt", "spark-streaming-zeromq",