Delete dead code and revert log file

internal/venice-test-common/src/integrationTest/resources/log4j2.properties

@@ -1,44 +1,22 @@
+status = error
 name = PropertiesConfig
 
 filters = threshold
 
 filter.threshold.type = ThresholdFilter
 filter.threshold.level = debug
 
-#appenders = console
+appenders = console
 
 appender.console.type = Console
 appender.console.name = STDOUT
 appender.console.layout.type = PatternLayout
-appender.console.layout.pattern = %d{yyyy-MM-dd HH:mm:ss} %p [%c{1}] [%t] %m%n
+appender.console.layout.pattern = %d{yyyy-MM-dd HH:mm:ss} - [%X{component}] %p [%c{1}] [%t] %m%n
 
-appender.rolling.type = RollingFile
-appender.rolling.name = fileLogger
-appender.rolling.fileName= /Users/sumane/logs/venice-test.log
-appender.rolling.filePattern= ${basePath}/app_%d{yyyyMMdd}.log.gz
-appender.rolling.layout.type = PatternLayout
-appender.rolling.layout.pattern = %d{yyyy-MM-dd HH:mm:ss} %p [%c{1.}] [%t] %m%n
-appender.rolling.policies.type = Policies
-
-rootLogger.level = debug
-#rootLogger.appenderRefs = stdout
-#rootLogger.appenderRef.stdout.ref = STDOUT
-#rootLogger.appenderRefs = RollingFile
-rootLogger.appenderRef.RollingFile.ref = fileLogger
+rootLogger.level = info
+rootLogger.appenderRefs = stdout
+rootLogger.appenderRef.stdout.ref = STDOUT
 
+# Set package org.apache.zookeeper log level to error.
 logger.zk.name = org.apache.zookeeper
-logger.zk.level = error
-logger.apache.name = org.apache
-logger.apache.level = error
-logger.kafka.name = kafka
-logger.kafka.level = error
-logger.e.name = org.eclipse
-logger.e.level = off
-logger.d2.name = com.linkedin.d2
-logger.d2.level = error
-logger.venice.name = com.linkedin.venice
-logger.venice.level = debug
-logger.vs.name = com.linkedin.venice.serialization.avro
-logger.vs.level = info
-logger.vu.name = com.linkedin.venice.utils
-logger.vu.level = info
+logger.zk.level = error