[#109] Bug fix and remove unused variable

app/templates/req_materi.html

@@ -73,7 +73,7 @@
             </div>    
         </header>
         {% if requested_material %}
-                <table class="table">
+                <table class="table" aria-describedby="Requested Material">
                     <thead>
                         <tr>
                             <th scope="col">No</th>

app/tests.py

@@ -2304,8 +2304,8 @@ class RequestMateriTest(TestCase):
 
     def test_displays_all_requested_material(self):
         self.client.login(**self.contributor_credential)
-        first_material_request = ReqMaterial(title="Material 1").save()
-        second_material_request = ReqMaterial(title="Material 2").save()
+        ReqMaterial(title="Material 1").save()
+        ReqMaterial(title="Material 2").save()
         response = self.client.get(self.url)
         self.assertContains(response, 'Material 1')
         self.assertContains(response, 'Material 2')