static public void deleteFile(MiniCluster miniCluster, String fileName)
    throws IOException {
    FileSystem fs = miniCluster.getFileSystem();
    fs.delete(new Path(fileName), true);
  }
Helper to remove a dfs file from the minicluster DFS

@param miniCluster reference to the Minicluster where the file should be deleted
@param fileName pathname of the file to be deleted
@throws IOException
hcatalog/core/src/test/java/org/apache/hive/hcatalog/MiniCluster.java