Remove arXiv banner

Author: fxcoudert

papersbot.py

@@ -188,6 +188,8 @@ def cleanText(s):
  s = s.replace("[ASAP]", "")
  # Some feeds have LF characeters
  s = s.replace("\x0A", "")
+ # Remove (arXiv:1903.00279v1 [cond-mat.mtrl-sci])
+ s = re.sub(r"\(arXiv:.+\)", "", s)
  # Remove multiple spaces, leading and trailing space
  return re.sub("\\s\\s+", " ", s).strip()