diff --git a/src/backend/utils/objects.ts b/src/backend/utils/objects.ts
deleted file mode 100644
index 544c5ec..0000000
--- a/src/backend/utils/objects.ts
+++ /dev/null
@@ -1,72 +0,0 @@
-export interface Dict {
-  [key: string]: any;
-}
-
-/**
- * Merge to objects recursively
- *
- * @param {object} target
- * @param {object[]} sources
- * @returns {object}
- */
-export function deepMerge(target: Record<string, any>, ...sources: any[]): Record<string, unknown> {
-  const isObject = (item: unknown): boolean => !!item && typeof item === 'object' && !Array.isArray(item);
-
-  if (!sources.length) {
-    return target;
-  }
-  const source = sources.shift();
-
-  if (isObject(target) && isObject(source)) {
-    for (const key in source) {
-      if (isObject(source[key])) {
-        if (!target[key]) {
-          Object.assign(target, { [key]: {} });
-        }
-
-        deepMerge(target[key], source[key]);
-      } else {
-        Object.assign(target, { [key]: source[key] });
-      }
-    }
-  }
-
-  return deepMerge(target, ...sources);
-}
-
-
-/**
- * Map fields of object to result by provided map object
- *
- * @param {File} data - data to map
- * @param {object} map - object that represents how should fields of File object should be mapped to response
- */
-export function mapObject(data: Dict, map: Dict): Dict {
-  const response: Dict = {};
-
-  Object.entries(map).forEach(([name, path]) => {
-    const fields: string[] = path.split(':');
-
-    if (fields.length > 1) {
-      let object: Dict = {};
-      const result = object;
-
-      fields.forEach((field, i) => {
-        if (i === fields.length - 1) {
-          object[field] = data[name];
-
-          return;
-        }
-
-        object[field] = {};
-        object = object[field];
-      });
-
-      deepMerge(response, result);
-    } else {
-      response[fields[0]] = data[name];
-    }
-  });
-
-  return response;
-}