build(aio): do not render "constructor()" heading in API docs (#22380)

Closes #22363

PR Close #22380

aio/tools/transforms/templates/api/lib/memberHelpers.html

@@ -60,18 +60,18 @@
 {%- macro renderMethodDetail(method, cssClass) -%}
 <a id="{$ method.anchor $}"></a>
 <table class="is-full-width method-table {$ cssClass $}">
-  <thead><tr><th><h3>
+  {% if method.name !== 'constructor' %}<thead><tr><th><h3>
     {% if method.isCallMember %}<i>call signature</i>
     {% elseif method.isNewMember %}<i>construct signature</i>
     {% else %}{$ method.name $}()
     {% endif %}
-  </h3></th></tr></thead>
+  </h3></th></tr></thead>{% endif %}
   <tbody>
-    <tr>
+    {% if method.description %}<tr>
       <td>
-        {% if method.description %}{$ method.description | marked $}{% endif %}
+        {$ method.description | marked $}
       </td>
-    </tr>
+    </tr>{% endif %}
   {% if method.overloads.length == 0 %}
     <tr>
       <td>