ci: removes ruby beta as we never shipped a version

.azure-pipelines/generation-pipeline.yml

@@ -68,11 +68,6 @@ resources:
      endpoint: microsoftgraph (22)
      name: microsoftgraph/msgraph-sdk-ruby
      ref: main
-   - repository: msgraph-beta-sdk-ruby
-     type: github
-     endpoint: microsoftgraph (22)
-     name: microsoftgraph/msgraph-beta-sdk-ruby
-     ref: main
    - repository: msgraph-sdk-typescript
      type: github
      endpoint: microsoftgraph (22)
@@ -404,35 +399,6 @@ stages:
             repoName: msgraph-sdk-ruby
             barrelFileName: microsoft_graph.rb
 
-- stage: stage_ruby_beta
-  dependsOn:
-  - stage_build_and_publish_kiota
-  - stage_beta_openapi
-  condition: |
-    and
-    (
-      eq(dependencies.stage_build_and_publish_kiota.result, 'Succeeded'),
-      in(dependencies.stage_beta_openapi.result, 'Succeeded', 'Skipped')
-    )
-  jobs:
-  - job: ruby_beta
-    steps:
-    - template: generation-templates/language-generation-kiota.yml
-      parameters:
-        language: 'ruby'
-        version: 'beta'
-        repoName: 'msgraph-beta-sdk-ruby'
-        branchName: $(betaBranch)
-        targetClassName: "GraphBaseServiceClient"
-        targetNamespace: "MicrosoftGraphBeta"
-        cleanMetadataFolder: $(cleanOpenAPIFolderBeta)
-        customArguments: "-e '/me' -e '/me/**'" # Exclude me
-        languageSpecificSteps:
-        - template: generation-templates/ruby.yml
-          parameters:
-            repoName: msgraph-beta-sdk-ruby
-            barrelFileName: microsoft_graph_beta.rb
-
 - stage: stage_java_v1_kiota
   dependsOn:
   - stage_build_and_publish_kiota