chore(endpoints): remove unused region tag (#10083)

Author: alarconesparza

endpoints/getting-started/deployment.yaml

@@ -39,7 +39,6 @@ spec:
     spec:
       containers:
       # [START endpoints_esp_yaml_java]
-      # [START esp]
       - name: esp
         image: gcr.io/endpoints-release/endpoints-runtime:1
         args: [
@@ -48,7 +47,6 @@ spec:
           "--service=SERVICE_NAME",
           "--rollout_strategy=managed",
         ]
-      # [END esp]
       # [END endpoints_esp_yaml_java]
         ports:
           - containerPort: 8081