feat: update AWS service endpoints metadata

Author: aws-sdk-kotlin-ci

codegen/aws-sdk-codegen/src/main/resources/aws/sdk/kotlin/codegen/endpoints.json

@@ -112,11 +112,6 @@
       }
     },
     "services" : {
-      "a4b" : {
-        "endpoints" : {
-          "us-east-1" : { }
-        }
-      },
       "access-analyzer" : {
         "endpoints" : {
           "af-south-1" : { },