[FIX] *: stray prints

Found a bunch of old leftover `print` calls which should not be in the
repo.

conftest.py

@@ -602,7 +602,6 @@ def _rate_limited(req):
         if not q.ok and q.headers.get('X-RateLimit-Remaining') == '0':
             reset = int(q.headers['X-RateLimit-Reset'])
             delay = max(0, round(reset - time.time() + 1.0))
-            print("Hit rate limit, sleeping for", delay, "seconds")
             time.sleep(delay)
             continue
         break

forwardport/models/project.py

@@ -501,8 +501,6 @@ stderr:
             pr_ids = {p.id for p in prs}
             for pr in prs:
                 pr_ids.discard(pr.parent_id.id)
-            print(source, prs, [p.parent_id for p in prs],
-                  '\n\t->', pr_ids, flush=True)
             for pr in (p for p in prs if p.id in pr_ids):
                 self.env.ref('runbot_merge.forwardport.reminder')._send(
                     repository=pr.repository,

forwardport/tests/test_weird.py

@@ -1197,11 +1197,6 @@ More info at https://github.com/odoo/odoo/wiki/Mergebot#forward-port
     pr_c_id.write({'parent_id': False, 'detach_reason': 'because'})
     env.run_crons('forwardport.reminder', 'runbot_merge.feedback_cron', context={'forwardport_updated_before': FAKE_PREV_WEEK})
 
-    for p in env['runbot_merge.pull_requests'].search_read(
-        [], ['id', 'parent_id', 'source_id', 'display_name']
-    ):
-        print(p, flush=True)
-
     assert pr_b.comments[2:] == [
         (users['user'], "@%s @%s child PR %s was modified / updated and has become a normal PR. This PR (and any of its parents) will need to be merged independently as approvals won't cross." % (
             users['user'],