remove Bertie from org

Author: sjpb

terraform/github/terraform.tfvars.json

@@ -150,7 +150,6 @@
       "users": {
         "maintainers": [],
         "members": [
-          "bertiethorpe",
           "elelaysh",
           "JohnGarbutt",
           "jovial",
@@ -175,7 +174,6 @@
           "assumptionsandg",
           "axelsimon",
           "bbezak",
-          "bertiethorpe",
           "chouroukblizzard",
           "cityofships",
           "claudia-lola",