No envDefaults for yang tools

Change-Id: I9f28d0bbc1db2394df172ad9a583f6ef7e0a9c47
diff --git a/jjb/onos/onos-yang-tools-verify.sh b/jjb/onos/onos-yang-tools-verify.sh
index 21335a7..d76316d 100755
--- a/jjb/onos/onos-yang-tools-verify.sh
+++ b/jjb/onos/onos-yang-tools-verify.sh
@@ -4,8 +4,5 @@
 curl -o apache-maven-3.5.2-bin.tar.gz -L 'http://www.apache.org/dyn/closer.cgi?filename=maven/maven-3/3.5.2/binaries/apache-maven-3.5.2-bin.tar.gz&action=download'
 tar xf apache-maven-3.5.2-bin.tar.gz
 PATH=`pwd`/apache-maven-3.5.2/bin:$PATH
-
-ONOS_ROOT=`pwd`
-. tools/build/envDefaults
 echo $PATH
 mvn clean install