Merge branch '43522-technical-debt-service-disabled_title' into 'master'

Resolve "Technical debt: `Service#disabled_title` no longer used and is left dangling in `services/_form.html.haml`"

Closes #43522

See merge request gitlab-org/gitlab-ce!17305

app/models/project_services/jira_service.rb

@@ -161,11 +161,6 @@ class JiraService < IssueTrackerService
     add_comment(data, jira_issue)
   end
 
-  # reason why service cannot be tested
-  def disabled_title
-    "Please fill in Password and Username."
-  end
-
   def test(_)
     result = test_settings
     success = result.present?

app/models/project_services/pipelines_email_service.rb

@@ -39,10 +39,6 @@ class PipelinesEmailService < Service
     project.pipelines.any?
   end
 
-  def disabled_title
-    'Please setup a pipeline on your repository.'
-  end
-
   def test_data(project, user)
     data = Gitlab::DataBuilder::Pipeline.build(project.pipelines.last)
     data[:user] = user.hook_attrs

app/models/service.rb

@@ -162,11 +162,6 @@ class Service < ActiveRecord::Base
     true
   end
 
-  # reason why service cannot be tested
-  def disabled_title
-    "Please setup a project repository."
-  end
-
   # Provide convenient accessor methods
   # for each serialized property.
   # Also keep track of updated properties in a similar way as ActiveModel::Dirty

app/views/projects/services/_form.html.haml

@@ -15,11 +15,6 @@
         .footer-block.row-content-block
           = service_save_button(@service)
            
-          - if @service.valid? && @service.activated?
-            - unless @service.can_test?
-              - disabled_class = 'disabled'
-              - disabled_title = @service.disabled_title
-
           = link_to 'Cancel', project_settings_integrations_path(@project), class: 'btn btn-cancel'
 
 - if lookup_context.template_exists?('show', "projects/services/#{@service.to_param}", true)