MAPREDUCE-7214. Remove unused pieces related to `mapreduce.job.userlog.retain.hours`

Signed-off-by: Akira Ajisaka <aajisaka@apache.org>

hadoop-common-project/hadoop-common/src/site/markdown/DeprecatedProperties.md

@@ -222,7 +222,6 @@ The following table lists the configuration property names that are deprecated i
 | mapreduce.reduce.class | mapreduce.job.reduce.class |
 | mapred.used.genericoptionsparser | mapreduce.client.genericoptionsparser.used |
 | mapred.userlog.limit.kb | mapreduce.task.userlog.limit.kb |
-| mapred.userlog.retain.hours | mapreduce.job.userlog.retain.hours |
 | mapred.working.dir | mapreduce.job.working.dir |
 | mapred.work.output.dir | mapreduce.task.output.dir |
 | min.num.spills.for.combine | mapreduce.map.combine.minspills |

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/MRJobConfig.java

@@ -287,8 +287,6 @@ public interface MRJobConfig {
   @Deprecated
   public static final String CACHE_SYMLINK = "mapreduce.job.cache.symlink.create";
 
-  public static final String USER_LOG_RETAIN_HOURS = "mapreduce.job.userlog.retain.hours";
-
   public static final String MAPREDUCE_JOB_USER_CLASSPATH_FIRST = "mapreduce.job.user.classpath.first";
 
   public static final String MAPREDUCE_JOB_CLASSLOADER = "mapreduce.job.classloader";

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/util/ConfigUtil.java

@@ -208,8 +208,6 @@ public class ConfigUtil {
         MRJobConfig.TASK_OUTPUT_DIR),
       new DeprecationDelta("mapred.userlog.limit.kb",
         MRJobConfig.TASK_USERLOG_LIMIT),
-      new DeprecationDelta("mapred.userlog.retain.hours",
-        MRJobConfig.USER_LOG_RETAIN_HOURS),
       new DeprecationDelta("mapred.task.profile.params",
         MRJobConfig.TASK_PROFILE_PARAMS),
       new DeprecationDelta("io.sort.spill.percent",

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/resources/job_1329348432655_0001_conf.xml

@@ -229,7 +229,6 @@
 <property><!--Loaded from job.xml--><name>mapreduce.job.ubertask.maxmaps</name><value>9</value></property>
 <property><!--Loaded from job.xml--><name>yarn.nodemanager.heartbeat.interval-ms</name><value>1000</value></property>
 <property><!--Loaded from job.xml--><name>dfs.namenode.secondary.http-address</name><value>0.0.0.0:9868</value></property>
-<property><!--Loaded from job.xml--><name>mapreduce.job.userlog.retain.hours</name><value>24</value></property>
 <property><!--Loaded from job.xml--><name>mapreduce.task.timeout</name><value>600000</value></property>
 <property><!--Loaded from job.xml--><name>mapreduce.jobhistory.loadedjobs.cache.size</name><value>1</value></property>
 <property><!--Loaded from job.xml--><name>mapreduce.framework.name</name><value>yarn</value></property>

hadoop-tools/hadoop-sls/src/main/data/2jobs2min-rumen-jh.json

@@ -4809,7 +4809,6 @@
     "mapreduce.job.ubertask.maxmaps" : "9",
     "yarn.scheduler.maximum-allocation-mb" : "8192",
     "yarn.nodemanager.heartbeat.interval-ms" : "1000",
-    "mapreduce.job.userlog.retain.hours" : "24",
     "dfs.namenode.secondary.http-address" : "0.0.0.0:9868",
     "mapreduce.task.timeout" : "600000",
     "mapreduce.framework.name" : "yarn",
@@ -9877,7 +9876,6 @@
     "mapreduce.job.ubertask.maxmaps" : "9",
     "yarn.scheduler.maximum-allocation-mb" : "8192",
     "yarn.nodemanager.heartbeat.interval-ms" : "1000",
-    "mapreduce.job.userlog.retain.hours" : "24",
     "dfs.namenode.secondary.http-address" : "0.0.0.0:9868",
     "mapreduce.task.timeout" : "600000",
     "mapreduce.framework.name" : "yarn",