trim a few more events from maybe-rust-meetups.json

Author: bdillo

tools/events/maybe-rust-meetups.json

@@ -1,13 +1,7 @@
 [
-    "https://www.meetup.com/8th-light-university/events/",
-    "https://www.meetup.com/altow-academy/events/",
-    "https://www.meetup.com/aws-cologne/events/",
     "https://www.meetup.com/barcelona-free-software/events/",
-    "https://www.meetup.com/bay-area-newsql-database-meetup/events/",
     "https://www.meetup.com/bellinghamcodes/events/",
     "https://www.meetup.com/bergen-html-css-meetup-group/events/",
-    "https://www.meetup.com/berlin-mozilla-meetup/events/",
-    "https://www.meetup.com/berlinawsug/events/",
     "https://www.meetup.com/bitdevsla/events/",
     "https://www.meetup.com/blockchaincenter/events/",
     "https://www.meetup.com/boulder-elixir/events/",