Revert "HADOOP-14686 update .gitignore"

This reverts commit ca523c9.

Author: shvachko

.gitignore

@@ -15,32 +15,11 @@
 .settings
 target
 build
-dependency-reduced-pom.xml
-
-# Filesystem contract test options and credentials
-auth-keys.xml
-azure-auth-keys.xml
-
-# External tool builders
-*/.externalToolBuilders
-*/maven-eclipse.xml
-
 hadoop-common-project/hadoop-kms/downloads/
 hadoop-hdfs-project/hadoop-hdfs/downloads
 hadoop-hdfs-project/hadoop-hdfs-httpfs/downloads
+hadoop-common-project/hadoop-common/src/test/resources/contract-test-options.xml
+hadoop-tools/hadoop-openstack/src/test/resources/contract-test-options.xml
 hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/main/tla/yarnregistry.toolbox
-hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/dist
-hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/tmp
-hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/node
-hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/node_modules
-hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/bower_components
-hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/.sass-cache
-hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/connect.lock
-hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/coverage/*
-hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/libpeerconnection.log
-hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/npm-debug.log
-hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/testem.log
-hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/dist
-hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/tmp
 yarnregistry.pdf
-patchprocess/
+hadoop-tools/hadoop-aws/src/test/resources/contract-test-options.xml