Revert "ODP-2636: MAPREDUCE-7431: ShuffleHandler refactor and fix after Netty4 upgrade. (apache#5311) (#47)"

This reverts commit a67adc3.

Author: JeffreySmith

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle/pom.xml

@@ -55,12 +55,6 @@
       <groupId>org.fusesource.leveldbjni</groupId>
       <artifactId>leveldbjni-all</artifactId>
     </dependency>
-    <dependency>
-      <groupId>ch.qos.logback</groupId>
-      <artifactId>logback-classic</artifactId>
-      <version>1.1.2</version>
-      <scope>test</scope>
-    </dependency>
   </dependencies>
 
   <build>