diff --git a/frontend/src/utils/http/resolveAxiosErrorMessage.spec.ts b/frontend/src/utils/http/resolveAxiosErrorMessage.spec.ts
deleted file mode 100644
index fe88b06..0000000
--- a/frontend/src/utils/http/resolveAxiosErrorMessage.spec.ts
+++ /dev/null
@@ -1,82 +0,0 @@
-import { AxiosError, type InternalAxiosRequestConfig } from 'axios';
-import { describe, expect, it } from 'vitest';
-import { resolveAxiosErrorMessage } from '@/utils/http/resolveAxiosErrorMessage';
-
-const fallback = 'Upload failed';
-
-const axiosErrorWithResponse = (data: unknown, message = 'Request failed'): AxiosError => {
-    return new AxiosError(
-        message,
-        AxiosError.ERR_BAD_REQUEST,
-        {} as InternalAxiosRequestConfig,
-        {},
-        {
-            status: 400,
-            statusText: 'Bad Request',
-            headers: {},
-            config: {} as InternalAxiosRequestConfig,
-            data
-        }
-    );
-};
-
-describe('resolveAxiosErrorMessage', () => {
-    it('falls back for non-Axios errors', () => {
-        expect(resolveAxiosErrorMessage(new Error('network'), fallback)).toBe('network');
-        expect(resolveAxiosErrorMessage('oops', fallback)).toBe(fallback);
-    });
-
-    it('falls back when Axios error has no response', () => {
-        const error = new AxiosError('timeout', AxiosError.ETIMEDOUT);
-
-        expect(resolveAxiosErrorMessage(error, fallback)).toBe('timeout');
-    });
-
-    it('uses string response data', () => {
-        const error = axiosErrorWithResponse('Rate limit exceeded');
-
-        expect(resolveAxiosErrorMessage(error, fallback)).toBe('Rate limit exceeded');
-    });
-
-    it('uses object message string (Nest-style)', () => {
-        const error = axiosErrorWithResponse({ message: 'Invalid ciphertext' });
-
-        expect(resolveAxiosErrorMessage(error, fallback)).toBe('Invalid ciphertext');
-    });
-
-    it('uses a single string from message array', () => {
-        const error = axiosErrorWithResponse({ message: ['iv must be valid base64'] });
-
-        expect(resolveAxiosErrorMessage(error, fallback)).toBe('iv must be valid base64');
-    });
-
-    it('joins multiple strings in message array', () => {
-        const error = axiosErrorWithResponse({
-            message: ['expiresAt must be a date', 'maxViews must be a number']
-        });
-
-        expect(resolveAxiosErrorMessage(error, fallback)).toBe(
-            'expiresAt must be a date, maxViews must be a number'
-        );
-    });
-
-    it('ignores non-string entries in message array', () => {
-        const error = axiosErrorWithResponse({
-            message: ['valid', 42, null, 'also valid']
-        });
-
-        expect(resolveAxiosErrorMessage(error, fallback)).toBe('valid, also valid');
-    });
-
-    it('falls back when response data has no usable message', () => {
-        const error = axiosErrorWithResponse({ message: [] }, 'HTTP 400');
-
-        expect(resolveAxiosErrorMessage(error, fallback)).toBe('HTTP 400');
-    });
-
-    it('falls back when response data is an object without message', () => {
-        const error = axiosErrorWithResponse({ statusCode: 400 }, 'HTTP 400');
-
-        expect(resolveAxiosErrorMessage(error, fallback)).toBe('HTTP 400');
-    });
-});
diff --git a/frontend/src/utils/http/resolveAxiosErrorMessage.ts b/frontend/src/utils/http/resolveAxiosErrorMessage.ts
deleted file mode 100644
index d7e35d2..0000000
--- a/frontend/src/utils/http/resolveAxiosErrorMessage.ts
+++ /dev/null
@@ -1,40 +0,0 @@
-import { isAxiosError } from 'axios';
-import { resolveErrorMessage } from '@/utils/resolveErrorMessage';
-
-const getAxiosErrorResponseMessage = (data: unknown): string | null => {
-    if (typeof data === 'string') {
-        return data;
-    }
-
-    if (typeof data !== 'object' || data === null || !('message' in data)) {
-        return null;
-    }
-
-    const { message } = data;
-
-    if (typeof message === 'string') {
-        return message;
-    }
-
-    if (Array.isArray(message)) {
-        const texts = message.filter((item): item is string => typeof item === 'string');
-
-        if (texts.length === 1) {
-            return texts[0];
-        }
-
-        if (texts.length > 1) {
-            return texts.join(', ');
-        }
-    }
-
-    return null;
-};
-
-export const resolveAxiosErrorMessage = (error: unknown, fallback: string): string => {
-    if (!isAxiosError(error) || !error.response) {
-        return resolveErrorMessage(error, fallback);
-    }
-
-    return getAxiosErrorResponseMessage(error.response.data) ?? resolveErrorMessage(error, fallback);
-};