Update endpoints model

Author: AWS SDK for Go v2 automation user

codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json

@@ -4103,23 +4103,6 @@
           }
         }
       },
-      "codestar" : {
-        "endpoints" : {
-          "ap-northeast-1" : { },
-          "ap-northeast-2" : { },
-          "ap-southeast-1" : { },
-          "ap-southeast-2" : { },
-          "ca-central-1" : { },
-          "eu-central-1" : { },
-          "eu-north-1" : { },
-          "eu-west-1" : { },
-          "eu-west-2" : { },
-          "us-east-1" : { },
-          "us-east-2" : { },
-          "us-west-1" : { },
-          "us-west-2" : { }
-        }
-      },
       "codestar-connections" : {
         "endpoints" : {
           "ap-northeast-1" : { },