Remove displayCommands call, function removed

Change-Id: Iede49517b595b9c4f196227b1bd94335413a34ee
diff --git a/jjb/shell/github-release.sh b/jjb/shell/github-release.sh
index 09fbe55..7d5a6a3 100644
--- a/jjb/shell/github-release.sh
+++ b/jjb/shell/github-release.sh
@@ -97,8 +97,6 @@
 export GOPATH=${GOPATH:-$WORKSPACE/go}
 export PATH=$PATH:/usr/lib/go-1.12/bin:/usr/local/go/bin:$GOPATH/bin
 
-displayCommands
-
 # To support golang projects that require GOPATH to be set and code checked out there
 # If $DEST_GOPATH is not an empty string:
 # - create GOPATH within WORKSPACE, and destination directory within