Remove softwareplan go track2 config (#17161)

* Remote softwareplan go track2 config

* softwareplan has been retired

* fix

Author: Alancere

specification/softwareplan/resource-manager/readme.go.md

@@ -9,13 +9,7 @@ go:
   namespace: softwareplan
 ```
 
-``` yaml $(go) && $(track2)
-license-header: MICROSOFT_MIT_NO_VERSION
-module-name: sdk/resourcemanager/softwareplan/armsoftwareplan
-module: github.com/Azure/azure-sdk-for-go/$(module-name)
-output-folder: $(go-sdk-folder)/$(module-name)
-azure-arm: true
-```
+The softwareplan has been retired and will not be supported by track2 go SDK.
 
 ### Go multi-api
 

specification/softwareplan/resource-manager/readme.md

@@ -62,7 +62,6 @@ swagger-to-sdk:
   - repo: azure-sdk-for-python
   - repo: azure-sdk-for-java
   - repo: azure-sdk-for-go
-  - repo: azure-sdk-for-go-track2
   - repo: azure-sdk-for-js
   - repo: azure-sdk-for-ruby
     after_scripts: