Removed unused files, code cleanup

lib/features/linked_documents/bloc/linked_documents_cubit.dart

@@ -0,0 +1,25 @@
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:paperless_api/paperless_api.dart';
+import 'package:paperless_mobile/features/linked_documents/bloc/state/linked_documents_state.dart';
+
+class LinkedDocumentsCubit extends Cubit<LinkedDocumentsState> {
+  final PaperlessDocumentsApi _api;
+
+  LinkedDocumentsCubit(this._api, DocumentFilter filter)
+      : super(LinkedDocumentsState(filter: filter)) {
+    _initialize();
+  }
+
+  Future<void> _initialize() async {
+    final documents = await _api.findAll(
+      state.filter.copyWith(
+        pageSize: 100,
+      ),
+    );
+    emit(LinkedDocumentsState(
+      isLoaded: true,
+      documents: documents,
+      filter: state.filter,
+    ));
+  }
+}