I'm not sure that this function is unused. It's usually used for debug purposes to route traces to console.

http://www.yoctoproject.org/docs/1.8/ref-manual/ref-manual.html
chapter: 2.3.8.2

I think it makes sense to keep it to debug complicated classes and recipes in future.

2017-08-03 14:55 GMT+03:00 Henning Schild <henning.schild@siemens.com>:
Signed-off-by: Henning Schild <henning.schild@siemens.com>
---
 meta/classes/isar-base.bbclass | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/meta/classes/isar-base.bbclass b/meta/classes/isar-base.bbclass
index 67d38a1..efd4223 100644
--- a/meta/classes/isar-base.bbclass
+++ b/meta/classes/isar-base.bbclass
@@ -21,16 +21,4 @@

 THISDIR = "${@os.path.dirname(d.getVar('FILE', True))}"

-bbdebug() {
-       test $# -ge 2 || {
-               echo "Usage: bbdebug level \"message\""
-               exit 1
-       }
-
-       test ${@bb.msg.debug_level['default']} -ge $1 && {
-               shift
-               echo "DEBUG:" $*
-       }
-}
-
 do_build[nostamp] = "0"
--
2.13.0