Revert "[SPARK-2410][SQL] Merging Hive Thrift/JDBC server"

.gitignore

assembly/pom.xml

bagel/pom.xml

bin/beeline

bin/compute-classpath.sh

bin/spark-shell

bin/spark-shell.cmd

bin/spark-sql

core/pom.xml

.../src/main/scala/org/apache/spark/deploy/SparkSubmit.scala

.../scala/org/apache/spark/deploy/SparkSubmitArguments.scala

dev/create-release/create-release.sh

dev/run-tests

dev/scalastyle

docs/sql-programming-guide.md

examples/pom.xml

external/flume/pom.xml

external/kafka/pom.xml

external/mqtt/pom.xml

external/twitter/pom.xml