mgmt, java, azurestackhci, dedup name "Update" (Azure#24924)

Author: weidongxu-microsoft

specification/azurestackhci/resource-manager/readme.java.md

@@ -4,46 +4,5 @@ These settings apply only when `--java` is specified on the command line.
 Please also specify `--azure-libraries-for-java-folder=<path to the root directory of your azure-libraries-for-java clone>`.
 
 ``` yaml $(java)
-azure-arm: true
-fluent: true
-namespace: com.microsoft.azure.management.azurestackhci
-license-header: MICROSOFT_MIT_NO_CODEGEN
-payload-flattening-threshold: 1
-output-folder: $(azure-libraries-for-java-folder)/azure-mgmt-azurestackhci
-directive:
-  - from: arcSettings.json
-    where: $.definitions.ArcSetting.properties.systemData
-    transform: $['x-ms-client-flatten'] = false
-    reason: systemData should not be flattened
-  - from: clusters.json
-    where: $.definitions.Cluster.properties.systemData
-    transform: $['x-ms-client-flatten'] = false
-    reason: systemData should not be flattened
-  - from: extensions.json
-    where: $.definitions.Extension.properties.systemData
-    transform: $['x-ms-client-flatten'] = false
-    reason: systemData should not be flattened
-```
-
-# Validation
-
-
-### Java multi-api
-
-``` yaml $(java) && $(multiapi)
-batch:
-  - tag: package-2020-10
-```
-
-### Tag: package-2020-10 and java
-
-These settings apply only when `--tag=package-2020-10 --java` is specified on the command line.
-Please also specify `--azure-libraries-for-java=<path to the root directory of your azure-sdk-for-java clone>`.
-
-``` yaml $(tag) == 'package-2020-10' && $(java) && $(multiapi)
-java:
-  namespace: com.microsoft.azure.management.azurestackhci.v2020_10_01
-  output-folder: $(azure-libraries-for-java-folder)/sdk/azurestackhci/mgmt-v2020_10_01
-regenerate-manager: true
-generate-interface: true
+rename-model: "Update:HciUpdate"
 ```