Remove debug output

Change-Id: I57211fb1920a484b5c3d67c4e8e83c3e71e136f8
diff --git a/tools/build/bazel/onos_app.py b/tools/build/bazel/onos_app.py
index 87cd3f6..7b817d0 100755
--- a/tools/build/bazel/onos_app.py
+++ b/tools/build/bazel/onos_app.py
@@ -212,9 +212,6 @@
                               features=options.features,
                               **values)
 
-    sys.stderr.write("In onos_app.py - output is:" + options.output)
-    sys.stderr.flush()
-
     if options.write_feature:
         write(options.output, feature)