Revert "use SP10 instead of default SP30 for stream_instance"

This reverts commit 19b6aad.

Author: lantoli

internal/service/streamconnection/resource_stream_connection_test.go

@@ -427,9 +427,6 @@ func configureCluster(projectID, instanceName, clusterName string) string {
 				region = "VIRGINIA_USA"
 				cloud_provider = "AWS"
 			}
-			stream_config = {
-				tier = "SP10"
-			}
 		}
 		
 		resource "mongodbatlas_stream_connection" "test" {
@@ -455,9 +452,6 @@ func configureHTTPS(projectID, instanceName, url, headers string) string {
 				region = "VIRGINIA_USA"
 				cloud_provider = "AWS"
 			}
-			stream_config = {
-				tier = "SP10"
-			}
 		}
 			
 		resource "mongodbatlas_stream_connection" "test" {

internal/service/streamprocessor/resource_test.go

@@ -456,9 +456,6 @@ func configToUpdateStreamProcessor(projectID, instanceName, processorName, state
 				region         = "VIRGINIA_USA"
 				cloud_provider = "AWS"
 			}
-			stream_config = {
-				tier = "SP10"
-			}
 		}
 
 		resource "mongodbatlas_stream_connection" "sample" {
@@ -578,9 +575,6 @@ func config(t *testing.T, projectID, instanceName, processorName, state string,
 				region         = "VIRGINIA_USA"
 				cloud_provider = "AWS"
 			}
-			stream_config = {
-				tier = "SP10"
-			}
 		}
 
 		%[3]s