Deleted extraneous file

- this snook in at some point

errors.js

@@ -1,32 +0,0 @@
-export class HumanReadableError extends Error {
-    /**
-     * Returns whether this response from the server is a human readable error and should be shown to the user.
-     * @param {Response} res
-     * @returns {HumanReadableError|undefined}
-     */
-    static async fromApiResponse(res) {
-        // Bad request + Too many requests
-        if (res.status === 400 || res.status === 429) {
-            try {
-                const json = await res.json();
-                if (json.errors && Array.isArray(json.errors) && json.errors.length > 0 && json.errors[0].message) {
-                    return new HumanReadableError(json.errors[0].message);
-                }
-            } catch (e) {
-                // Failed to decode: ignore
-                return false;
-            }
-        }
-    }
-
-    /**
-     * Only output the message of an error if it is a human readable error and should be exposed to the user.
-     * Otherwise it returns a default generic message.
-     */
-    static getMessageFromError(error, defaultMessage) {
-        if (error instanceof HumanReadableError) {
-            return error.message;
-        }
-        return defaultMessage;
-    }
-}