Remove mobile filter chip bar from repertoire page

The sticky chip bar added noise: users already see their active
filters highlighted in the accordion columns (with rep-entry--selected
styling and the active-count badge on each toggle). Removing chips
shifts focus back to the accordions, consistent with the expectation
that users return to the dropdowns to adjust filters.

app/templates/partials/repertoire-index.php

@@ -107,49 +107,9 @@ foreach ($filterColumns as $col) {
     ));
 }
 
-// ── Active filter chips ─────────────────────────────────────────────────────
-// Build a flat list of {dim, label, value, url} for every active filter entry.
-$activeChips = [];
-$dimLabels = [
-    'years' => 'Année',
-    'ap'    => 'AP',
-    'or'    => 'Orientation',
-    'fi'    => 'Finalité',
-    'kw'    => 'Mot-clé',
-];
-foreach (['years', 'ap', 'or', 'fi', 'kw'] as $dim) {
-    foreach ($activeSets[$dim] as $val) {
-        $activeChips[] = [
-            'dim'   => $dim,
-            'label' => $dimLabels[$dim],
-            'value' => $val,
-            'url'   => repToggleUrl($activeSets, $dim, $val),
-        ];
-    }
-}
 ?>
 <div id="repertoire-index" class="repertoire-index">
 
-<?php if ($anyActive): ?>
-    <!-- Active filter chips bar -->
-    <div class="rep-chip-bar" role="status" aria-label="Filtres actifs">
-        <span class="rep-chip-bar__label">Filtres&nbsp;:</span>
-        <?php foreach ($activeChips as $chip): ?>
-        <button type="button" class="rep-chip"
-                hx-get="<?= htmlspecialchars($chip['url']) ?>"
-                hx-target="#repertoire-index"
-                hx-swap="outerHTML"
-                hx-push-url="true"
-                hx-indicator="#rep-indicator"
-                aria-label="Retirer le filtre <?= htmlspecialchars($chip['label']) ?> : <?= htmlspecialchars($chip['value']) ?>">
-            <span class="rep-chip__dim"><?= htmlspecialchars($chip['label']) ?></span>
-            <span class="rep-chip__value"><?= htmlspecialchars($chip['value']) ?></span>
-            <span class="rep-chip__remove" aria-hidden="true">×</span>
-        </button>
-        <?php endforeach; ?>
-    </div>
-<?php endif; ?>
-
 <?php
 // Render filter columns in the correct left-to-right order.
 // Students column (non-filter) is inserted between keywords and AP/or/fi/years.