buildman: Drop unused OUTPUT_FILE constant
This is not actually used but its presence suggests that it is the
filename for the board database. Drop it to avoid confusion.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/buildman/boards.py b/tools/buildman/boards.py
index 9e7b486..e7aa0d8 100644
--- a/tools/buildman/boards.py
+++ b/tools/buildman/boards.py
@@ -25,7 +25,6 @@
from u_boot_pylib import tout
### constant variables ###
-OUTPUT_FILE = 'boards.cfg'
CONFIG_DIR = 'configs'
SLEEP_TIME = 0.03
COMMENT_BLOCK = f'''#