fix: remove unused jest import in public_data_overrides test

Author: dbanks12

yarn-project/aztec-node/src/aztec-node/public_data_overrides.test.ts

@@ -5,7 +5,6 @@ import { computePublicDataTreeLeafSlot } from '@aztec/stdlib/hash';
 import type { MerkleTreeWriteOperations } from '@aztec/stdlib/interfaces/server';
 import { MerkleTreeId } from '@aztec/stdlib/trees';
 
-import { jest } from '@jest/globals';
 import { type MockProxy, mock } from 'jest-mock-extended';
 
 import { applyPublicDataOverrides } from './public_data_overrides.js';