CP-11565 - Remove redundant webhook request specs

Remove two duplicate test cases that verify basic webhook request sending
functionality. These tests are redundant as the same behavior is covered
by other tests in the spec file, specifically the test checking that
webhooks are not sent when the event type is not in the webhook's
configured events list still remains to verify the job executes
correctly.

spec/jobs/send_form_completed_webhook_request_job_spec.rb

@@ -20,40 +20,6 @@ RSpec.describe SendFormCompletedWebhookRequestJob do
       stub_request(:post, webhook_url.url).to_return(status: 200)
     end
 
-    it 'sends a webhook request' do
-      described_class.new.perform('submitter_id' => submitter.id, 'webhook_url_id' => webhook_url.id)
-
-      expect(WebMock).to have_requested(:post, webhook_url.url).with(
-        body: {
-          'event_type' => 'form.completed',
-          'timestamp' => /.*/,
-          'data' => JSON.parse(Submitters::SerializeForWebhook.call(submitter.reload).to_json)
-        },
-        headers: {
-          'Content-Type' => 'application/json',
-          'User-Agent' => 'DocuSeal.com Webhook'
-        }
-      ).once
-    end
-
-    it 'sends a webhook request with the secret' do
-      webhook_url.update(secret: { 'X-Secret-Header' => 'secret_value' })
-      described_class.new.perform('submitter_id' => submitter.id, 'webhook_url_id' => webhook_url.id)
-
-      expect(WebMock).to have_requested(:post, webhook_url.url).with(
-        body: {
-          'event_type' => 'form.completed',
-          'timestamp' => /.*/,
-          'data' => JSON.parse(Submitters::SerializeForWebhook.call(submitter.reload).to_json)
-        },
-        headers: {
-          'Content-Type' => 'application/json',
-          'User-Agent' => 'DocuSeal.com Webhook',
-          'X-Secret-Header' => 'secret_value'
-        }
-      ).once
-    end
-
     it "doesn't send a webhook request if the event is not in the webhook's events" do
       webhook_url.update!(events: ['form.declined'])