removed the usage of niches from item index and summary

modules/item/front/index/index.html

@@ -18,7 +18,6 @@
                     <vn-th field="name">Description</vn-th>
                     <vn-th field="stems" shrink>Stems</vn-th>
                     <vn-th field="size" shrink>Size</vn-th>
-                    <vn-th field="niche" shrink>Niche</vn-th>
                     <vn-th field="typeFk" shrink>Type</vn-th>
                     <vn-th field="category" shrink>Category</vn-th>
                     <vn-th field="intrastat" shrink>Intrastat</vn-th>
@@ -63,7 +62,6 @@
                     </vn-td>
                     <vn-td shrink>{{::item.stems}}</vn-td>
                     <vn-td shrink>{{::item.size}}</vn-td>
-                    <vn-td shrink>{{::item.niche}}</vn-td>
                     <vn-td shrink title="{{::item.typeName}}">
                         {{::item.typeName}}
                     </vn-td>

modules/item/front/index/index.js

@@ -23,8 +23,6 @@ class Controller extends Section {
             return {'b.packing': value};
         case 'origin':
             return {'ori.code': value};
-        case 'niche':
-            return {'ip.code': value};
         case 'typeFk':
             return {'i.typeFk': value};
         case 'intrastat':

modules/item/front/summary/index.html

@@ -138,24 +138,6 @@
                 value="{{tax.taxClass.description}}">
             </vn-label-value>
         </vn-one>
-        <vn-one name="niche">
-            <h4 ng-show="$ctrl.isBuyer || $ctrl.isReplenisher">
-                <a 
-                    ui-sref="item.card.niche({id:$ctrl.item.id})"
-                    target="_self">
-                    <span translate vn-tooltip="Go to">Niche</span>
-                </a>
-            </h4>
-            <h4 
-                translate
-                ng-show="!$ctrl.isBuyer && !$ctrl.isReplenisher">
-                Niche
-            </h4>
-            <vn-label-value label="{{niche.warehouse.name}}"
-                ng-repeat="niche in $ctrl.summary.niches"
-                value="{{niche.code}}">
-            </vn-label-value>
-        </vn-one>
         <vn-one name="botanical">
             <h4 ng-show="$ctrl.isBuyer">
                 <a