Remove unneeded text

petitions/utils.py

 from common.utils import BaseMailUtil
 
 
-SPB_PETITION_THANKS = (
-    'Many thanks for signing the petition!\n\n'
-    'If you have not done so already, you can really further help SciPost convince '
-    'your institution, library and/or funding agency to become Supporting Partners '
-    'by sending a personalized email to one of their representatives; we have a '
-    'handy email template for you to use at https://scipost.org/partners/.\n\n'
-    'You can also point them to our prospectus and draft agreement on that same '
-    'page.\n\nWe are very grateful for your help.\n\nThe SciPost Team'
-    )
-
-SPB_PETITION_THANKS_HTML = (
-)
-
-
 class PetitionUtils(BaseMailUtil):
     mail_sender = 'petitions@scipost.org'
     mail_sender_title = 'SciPost petitions'