Remove legacy from inventory template

The comments are already addressed (or not needed). Also, UUIDs really
are long and do not add any benefit to the administrator.

src/main/resources/templates/inventory.html

@@ -7,20 +7,17 @@
 		<div layout:fragment="content">
 			<table class="table">
 				<thead>
-					<!-- TODO: i18n? -->
 					<tr>
-						<th>ID</th> <!-- FIXME UUIDs are long -->
 						<th>Produktname</th>
 						<th>Menge</th>
 						<th>Einkaufspreis</th>
 						<th>UVP</th>
 						<th>Gesamtwert</th>
-						<th></th> <!-- FIXME: this should be replaced by something more reasonable once CSS comes into play -->
+						<th></th>
 					</tr>
 				</thead>
 				<tbody>
 					<tr th:each="item : ${inventory}">
-						<td th:text="${item.id}"></td>
 						<td th:text="${item.product.name}"></td>
 						<td th:text="${item.quantity}"></td>
 						<td th:text="${item.product.wholesalePrice}"></td>