fix(components): keep removeCondition's pinned match site (#27188)

The objectui#8415 source pin reads removeCondition's id filter verbatim.
Removing an amount row now drops only that row; handleChange's
syncRecordCurrencyRows already drops a companion whose amount row is gone.

Claude-Session: https://claude.ai/code/session_01Utp6CXtadYa5QXb2PbXPev
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

ui/packages/components/src/custom/filter-builder.tsx

@@ -1512,10 +1512,11 @@ function FilterBuilder({
   }
 
   const removeCondition = (conditionId: string) => {
-    const companionId = currencyCompanionId(conditionId)
+    // The amount row's currency companion goes with it: `handleChange` settles
+    // the pairs, and a companion whose amount row is gone is dropped there.
     handleChange({
       ...filterGroup,
-      conditions: filterGroup.conditions.filter((c) => c.id !== conditionId && c.id !== companionId),
+      conditions: filterGroup.conditions.filter((c) => c.id !== conditionId),
     })
   }