cannot enable fckeditor module?

[Q] After installing fckeditor-6.x-2.x-dev.tar.gz and FCKeditor_2.6.3.tar.gz,
then trying to enable fckeditor module, but

Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in drupal/sites/all/modules/fckeditor/fckeditor.module on line 235

found that a fckeditor already exists in core, i.e. drupal/modules/fckeditor

cannot remove either drupal/modules/fckeditor or drupal/sites/all/modules/fckeditor/ in bluehost,
why?

--> bluehost disable the recursive delete/change permission!?
--> has to use Legacy FileManager!