No need to set spark.ui.port to 0 anymore

Author: andrewor14

pom.xml

@@ -899,7 +899,6 @@
               <java.awt.headless>true</java.awt.headless>
               <spark.test.home>${session.executionRootDirectory}</spark.test.home>
               <spark.testing>1</spark.testing>
-              <spark.ui.port>0</spark.ui.port>
               <spark.ui.enabled>false</spark.ui.enabled>
             </systemProperties>
           </configuration>

project/SparkBuild.scala

@@ -337,7 +337,6 @@ object TestSettings {
     javaOptions in Test += "-Dspark.test.home=" + sparkHome,
     javaOptions in Test += "-Dspark.testing=1",
     javaOptions in Test += "-Dspark.ports.maxRetries=100",
-    javaOptions in Test += "-Dspark.ui.port=0",
     javaOptions in Test += "-Dspark.ui.enabled=false",
     javaOptions in Test += "-Dsun.io.serialization.extendedDebugInfo=true",
     javaOptions in Test ++= System.getProperties.filter(_._1 startsWith "spark")