support/scripts/pkg-stats: drop unused cpeid_name() function

The cpeid_name() function is not used anywhere, drop it.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

support/scripts/pkg-stats

@@ -1059,13 +1059,6 @@ def parse_args():
     return args
 
 
-def cpeid_name(pkg):
-    try:
-        return pkg.cpeid.split(':')[1]
-    except Exception:  # cpeid may be None, or improperly formatted
-        return ''
-
-
 def __main__():
     global cvecheck