test(endpoints): remove streams.dynamodb dualstack in us-gov

Author: AllanZhengYP

tests/functional/endpoints/test_cases_supported.json

@@ -11175,29 +11175,13 @@
     "useDualstackEndpoint": false,
     "hostname": "streams.dynamodb.us-gov-east-1.amazonaws.com"
   },
-  {
-    "endpointPrefix": "streams.dynamodb",
-    "sdkId": "DynamoDB Streams",
-    "region": "us-gov-east-1",
-    "useFipsEndpoint": false,
-    "useDualstackEndpoint": true,
-    "hostname": "streams.dynamodb.us-gov-east-1.api.aws"
-  },
   {
     "endpointPrefix": "streams.dynamodb",
     "sdkId": "DynamoDB Streams",
     "region": "us-gov-east-1",
     "useFipsEndpoint": true,
     "useDualstackEndpoint": false,
-    "hostname": "streams.dynamodb-fips.us-gov-east-1.amazonaws.com"
-  },
-  {
-    "endpointPrefix": "streams.dynamodb",
-    "sdkId": "DynamoDB Streams",
-    "region": "us-gov-east-1",
-    "useFipsEndpoint": true,
-    "useDualstackEndpoint": true,
-    "hostname": "streams.dynamodb-fips.us-gov-east-1.api.aws"
+    "hostname": "streams.dynamodb.us-gov-east-1.amazonaws.com"
   },
   {
     "endpointPrefix": "sts",