astconfigparser: Really handle case where line is simply a comment.

The regular expression would match causing the code that handled
the line if it was merely a comment to never get executed.

Change-Id: I3e4022481037ebcba9905587fe8c764b4ce21819

contrib/scripts/sip_to_pjsip/astconfigparser.py

@@ -203,7 +203,7 @@ def remove_comment(line, is_comment):
     if match:
          # the end of where the real string is is where the comment starts
          line = line[0:(match.end()-1)]
-    elif line.startswith(";"):
+    if line.startswith(";"):
          # if the line is actually a comment just ignore it all
          line = ""