[KYUUBI #297] Remove unused property from build properties file

fixes #297
Squashed commit of the following:

commit 26df4c44a57f92dd16efe69898e9e969c22093fa
Author: fwang12 <fwang12@ebay.com>
Date:   Mon Jan 18 13:09:13 2021 +0800

    remove unused properties in build info

.gitignore

@@ -23,8 +23,6 @@
 build/apache-maven*
 build/scala*
 build/test
-kyuubi-server/build
-kyuubi-server/*example*
 target/
 dist/
 kyuubi-*-bin-*
@@ -40,7 +38,6 @@ derby.log
 ldap
 */dependency-reduced-pom.xml
 */*/dependency-reduced-pom.xml
-kyuubi-server/kyuubi-kdc/
 metrics/report.json
 metrics/.report.json.crc
 /kyuubi-ha/embedded_zookeeper/

build/kyuubi-build-info

@@ -29,7 +29,6 @@ echo_build_properties() {
   echo kyuubi_hive_version="$6"
   echo kyuubi_hadoop_version="$7"
   echo user="$USER"
-  echo jar=kyuubi-server-$2.jar
   echo revision=$(git rev-parse HEAD)
   echo branch=$(git rev-parse --abbrev-ref HEAD)
   echo date=$(date -u +%Y-%m-%dT%H:%M:%SZ)