ZOOKEEPER-2936: Removed duplicate code

Author: asutosh936 <asutosh.pandya@hotmail.com>

Reviewers: Andor Molnár <andor@cloudera.com>, Abraham Fine <afine@apache.org>

Closes #473 from asutosh936/master and squashes the following commits:

6a17613be [asutosh936] ZOOKEEPER-2936 - Deleted duplicate code
a02ef3db8 [asutosh936] ZOOKEEPER-2936 - Removed duplicate code

src/contrib/rest/conf/log4j.properties

@@ -56,10 +56,6 @@ log4j.appender.ROLLINGFILE.MaxFileSize=10MB
 # uncomment the next line to limit number of backup files
 #log4j.appender.ROLLINGFILE.MaxBackupIndex=10
 
-log4j.appender.ROLLINGFILE.layout=org.apache.log4j.PatternLayout
-log4j.appender.ROLLINGFILE.layout.ConversionPattern=%d{ISO8601} - %-5p [%t:%C{1}@%L] - %m%n
-
-
 #
 # Add TRACEFILE to rootLogger to get log file output
 #    Log DEBUG level and above messages to a log file