Removed broken feeds

We have so many broken feeds that the non-broken ones don't get updated anymore.

I am starting to remove these in order to restore a working planet.

I've only kept the feeds that have more than 5 items.

+ drush -r /var/www/drupal.org/htdocs -l drupal.org aggregator
tput: No value for $TERM and no -T specified
WD aggregator: The feed from pingVision seems to be broken, due to [warning]
"404 Not Found".
WD aggregator: The feed from Jerad Bitner seems to be broken, due to [warning]
an error "Reserved XML Name" on line 2.
WD aggregator: The feed from Francesco Levorato seems to be broken, [warning]
due to "0 php_network_getaddresses: getaddrinfo failed: Name or
service not known".
WD aggregator: The feed from Acquia seems to be broken, due to an [warning]
error "Mismatched tag" on line 47.
WD aggregator: The feed from Marek Sotak seems to be broken, due to [warning]
"404 Not Found".
WD aggregator: The feed from Joeri Poesen seems to be broken, due to [warning]
an error "EntityRef: expecting ';'" on line 11.
WD aggregator: The feed from Madcap seems to be broken, due to "404 [warning]
Not Found".
WD aggregator: The feed from Jacob Singh seems to be broken, due to [warning]
an error "Invalid document end" on line 1.
WD aggregator: The feed from Glenn Burks seems to be broken, due to [warning]
"404 Not Found".
WD aggregator: The feed from Stephen Evanchik seems to be broken, due [warning]
to "-111 Connection refused".
WD aggregator: The feed from PG Designing seems to be broken, due to [warning]
"404 Not Found".
WD aggregator: The feed from CommonPlaces e-Solutions seems to be [warning]
broken, due to an error "Undeclared entity warning" on line 213.
WD aggregator: The feed from Amr Mostafa seems to be broken, due to [warning]
"0 php_network_getaddresses: getaddrinfo failed: Name or service not
known".
WD aggregator: The feed from Steve Karsch seems to be broken, due to [warning]
an error "> required" on line 57.
WD aggregator: The feed from Jeff Noyes seems to be broken, due to [warning]
"404 Not Found".
WD aggregator: The feed from Nick Vidal seems to be broken, due to [warning]
"404 Not Found".
WD aggregator: The feed from Arto Bendiken seems to be broken, due to [warning]
"403 Forbidden".
WD aggregator: The feed from David Stuart seems to be broken, due to [warning]
"503 Service Unavailable".
WD aggregator: The feed from Magnity Webdesign seems to be broken, [warning]
due to "0 php_network_getaddresses: getaddrinfo failed: Name or
service not known".
WD aggregator: The feed from Sprocket seems to be broken, due to "503 [warning]
Service unavailable".
WD aggregator: The feed from Mike Crittenden seems to be broken, due [warning]
to "404 Not Found".
WD aggregator: The feed from Kathleen Murtagh seems to be broken, due [warning]
to "404 Not Found".
WD aggregator: The feed from Randy Fay seems to be broken, due to an [warning]
error "Mismatched tag" on line 149.
WD aggregator: The feed from David Latapie seems to be broken, due to [warning]
an error "SYSTEM or PUBLIC, the URI is missing" on line 1.
WD aggregator: The feed from OpenSanta seems to be broken, due to [warning]
"-111 Connection refused".
WD aggregator: The feed from Michael Samuelson seems to be broken, [warning]
due to an error "Undeclared entity warning" on line 252.
WD aggregator: The feed from Pantheon Systems seems to be broken, due [warning]
to an error "Undeclared entity warning" on line 226.
The feed from Jerad Bitner seems to be broken, because of error [error]
"Reserved XML Name" on line 2.
The feed from Acquia seems to be broken, because of error "Mismatched [error]
tag" on line 47.
The feed from Joeri Poesen seems to be broken, because of error [error]
"EntityRef: expecting ';'" on line 11.
The feed from Jacob Singh seems to be broken, because of error [error]
"Invalid document end" on line 1.
The feed from CommonPlaces e-Solutions seems to be broken, because of [error]
error "Undeclared entity warning" on line 213.
The feed from Steve Karsch seems to be broken, because of error "> [error]
required" on line 57.
The feed from Randy Fay seems to be broken, because of error [error]
"Mismatched tag" on line 149.
The feed from David Latapie seems to be broken, because of error [error]
"SYSTEM or PUBLIC, the URI is missing" on line 1.
The feed from Michael Samuelson seems to be broken, because of error [error]
"Undeclared entity warning" on line 252.
The feed from Pantheon Systems seems to be broken, because of error [error]
"Undeclared entity warning" on line 226.
An error occurred at function : drush_drupalorg_aggregator [error]