Simplify rendering JIRA issue description

ee/app/helpers/vulnerabilities_helper.rb

@@ -46,12 +46,11 @@ module VulnerabilitiesHelper
 
     decorated_vulnerability = vulnerability.present
     summary = _('Investigate vulnerability: %{title}') % { title: decorated_vulnerability.title }
-    description = ApplicationController.render(template: {
-                                               partial: 'vulnerabilities/jira_issue_description',
+    description = ApplicationController.render(
+      template: 'vulnerabilities/jira_issue_description',
       formats: :md,
-                                               handlers: :erb
-                                               },
-                                               locals: { vulnerability: decorated_vulnerability })
+      locals: { vulnerability: decorated_vulnerability }
+    )
 
     vulnerability.project.jira_integration.new_issue_url_with_predefined_fields(summary, description)
   end

ee/spec/helpers/vulnerabilities_helper_spec.rb

@@ -225,12 +225,6 @@ RSpec.describe VulnerabilitiesHelper do
         JIRA
       end
 
-      it 'renders description using dedicated template' do
-        expect(ApplicationController).to receive(:render).with(template: 'vulnerabilities/jira_issue_description.md.erb', locals: { vulnerability: an_instance_of(VulnerabilityPresenter) })
-
-        subject
-      end
-
       it 'delegates rendering URL to Integrations::Jira' do
         expect(jira_integration).to receive(:new_issue_url_with_predefined_fields).with("Investigate vulnerability: #{vulnerability.title}", expected_jira_issue_description)
 
@@ -247,8 +241,9 @@ RSpec.describe VulnerabilitiesHelper do
         end
 
         it 'renders description using dedicated template without raising error' do
-          expect(ApplicationController).to receive(:render).with(template: 'vulnerabilities/jira_issue_description.md.erb', locals: { vulnerability: an_instance_of(VulnerabilityPresenter) })
-          expect {subject}.not_to raise_error
+          expect(jira_integration).to receive(:new_issue_url_with_predefined_fields).with("Investigate vulnerability: #{vulnerability.title}", expected_jira_issue_description)
+
+          subject
         end
       end
     end