LibWeb/IDB: Resolve FIXME regarding removing from indecies

Author: https://github.com/stelar7
Commit: 13674c1b32
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/4727
Reviewed-by: https://github.com/gmta ✅
Reviewed-by: https://github.com/shannonbooth

Libraries/LibWeb/IndexedDB/Internal/Index.h

@@ -45,6 +45,7 @@ public:
     GC::ConservativeVector<IndexRecord> first_n_in_range(GC::Ref<IDBKeyRange> range, Optional<WebIDL::UnsignedLong> count);
     u64 count_records_in_range(GC::Ref<IDBKeyRange> range);
     void store_a_record(IndexRecord const& record);
+    void remove_records_with_value_in_range(GC::Ref<IDBKeyRange> range);
 
     HTML::SerializationRecord referenced_value(IndexRecord const& index_record) const;