cancellare tabelle

scusate se le domande vi sembreranno idiote, ma in questo campo sono molto inesperta ;)

mi sono accorta di avere un sacco di tabelle che penso siano "l'eredità" lasciatami dal phpbb2 quando sono passata al phpbb3

* Mostra phpbb_3acl_groups
* Mostra phpbb_3acl_options
* Mostra phpbb_3acl_roles
* Mostra phpbb_3acl_roles_data
* Mostra phpbb_3acl_users
* Mostra phpbb_3attachments
* Mostra phpbb_3banlist
* Mostra phpbb_3bbcodes
* Mostra phpbb_3bookmarks
* Mostra phpbb_3bots
* Mostra phpbb_3config
* Mostra phpbb_3confirm
* Mostra phpbb_3disallow
* Mostra phpbb_3drafts
* Mostra phpbb_3extensions
* Mostra phpbb_3extension_groups
* Mostra phpbb_3forums
* Mostra phpbb_3forums_access
* Mostra phpbb_3forums_track
* Mostra phpbb_3forums_watch
* Mostra phpbb_3groups
* Mostra phpbb_3icons
* Mostra phpbb_3lang
* Mostra phpbb_3log
* Mostra phpbb_3moderator_cache
* Mostra phpbb_3modules
* Mostra phpbb_3poll_options
* Mostra phpbb_3poll_votes
* Mostra phpbb_3posts
* Mostra phpbb_3privmsgs
* Mostra phpbb_3privmsgs_folder
* Mostra phpbb_3privmsgs_rules
* Mostra phpbb_3privmsgs_to
* Mostra phpbb_3profile_fields
* Mostra phpbb_3profile_fields_data
* Mostra phpbb_3profile_fields_lang
* Mostra phpbb_3profile_lang
* Mostra phpbb_3ranks
* Mostra phpbb_3reports
* Mostra phpbb_3reports_reasons
* Mostra phpbb_3search_results
* Mostra phpbb_3search_wordlist
* Mostra phpbb_3search_wordmatch
* Mostra phpbb_3sessions
* Mostra phpbb_3sessions_keys
* Mostra phpbb_3sitelist
* Mostra phpbb_3smilies
* Mostra phpbb_3styles
* Mostra phpbb_3styles_imageset
* Mostra phpbb_3styles_imageset_data
* Mostra phpbb_3styles_template
* Mostra phpbb_3styles_template_data
* Mostra phpbb_3styles_theme
* Mostra phpbb_3topics
* Mostra phpbb_3topics_posted
* Mostra phpbb_3topics_track
* Mostra phpbb_3topics_watch
* Mostra phpbb_3users
* Mostra phpbb_3user_group
* Mostra phpbb_3warnings
* Mostra phpbb_3words
* Mostra phpbb_3zebra
* Mostra phpbb_auth_access
* Mostra phpbb_banlist
* Mostra phpbb_categories
* Mostra phpbb_config
* Mostra phpbb_confirm
* Mostra phpbb_disallow
* Mostra phpbb_forums
* Mostra phpbb_forum_prune
* Mostra phpbb_groups
* Mostra phpbb_nacl_groups
* Mostra phpbb_nacl_options
* Mostra phpbb_nacl_roles
* Mostra phpbb_nacl_roles_data
* Mostra phpbb_nacl_users
* Mostra phpbb_nattachments
* Mostra phpbb_nbanlist
* Mostra phpbb_nbbcodes
* Mostra phpbb_nbookmarks
* Mostra phpbb_nbots
* Mostra phpbb_nconfig
* Mostra phpbb_nconfirm
* Mostra phpbb_ndisallow
* Mostra phpbb_ndrafts
* Mostra phpbb_nextensions
* Mostra phpbb_nextension_groups
* Mostra phpbb_nforums
* Mostra phpbb_nforums_access
* Mostra phpbb_nforums_track
* Mostra phpbb_nforums_watch
* Mostra phpbb_ngroups
* Mostra phpbb_nicons
* Mostra phpbb_nlang
* Mostra phpbb_nlog
* Mostra phpbb_nmoderator_cache
* Mostra phpbb_nmodules
* Mostra phpbb_npoll_options
* Mostra phpbb_npoll_votes
* Mostra phpbb_nposts
* Mostra phpbb_nprivmsgs
* Mostra phpbb_nprivmsgs_folder
* Mostra phpbb_nprivmsgs_rules
* Mostra phpbb_nprivmsgs_to
* Mostra phpbb_nprofile_fields
* Mostra phpbb_nprofile_fields_data
* Mostra phpbb_nprofile_fields_lang
* Mostra phpbb_nprofile_lang
* Mostra phpbb_nranks
* Mostra phpbb_nreports
* Mostra phpbb_nreports_reasons
* Mostra phpbb_nsearch_results
* Mostra phpbb_nsearch_wordlist
* Mostra phpbb_nsearch_wordmatch
* Mostra phpbb_nsessions
* Mostra phpbb_nsessions_keys
* Mostra phpbb_nsitelist
* Mostra phpbb_nsmilies
* Mostra phpbb_nstyles
* Mostra phpbb_nstyles_imageset
* Mostra phpbb_nstyles_imageset_data
* Mostra phpbb_nstyles_template
* Mostra phpbb_nstyles_template_data
* Mostra phpbb_nstyles_theme
* Mostra phpbb_ntopics
* Mostra phpbb_ntopics_posted
* Mostra phpbb_ntopics_track
* Mostra phpbb_ntopics_watch
* Mostra phpbb_nusers
* Mostra phpbb_nuser_group
* Mostra phpbb_nwarnings
* Mostra phpbb_nwords
* Mostra phpbb_nzebra
* Mostra phpbb_posts
* Mostra phpbb_posts_text
* Mostra phpbb_privmsgs
* Mostra phpbb_privmsgs_text
* Mostra phpbb_ranks
* Mostra phpbb_search_results
* Mostra phpbb_search_wordlist
* Mostra phpbb_search_wordmatch
* Mostra phpbb_sessions
* Mostra phpbb_sessions_keys
* Mostra phpbb_smilies
* Mostra phpbb_themes
* Mostra phpbb_themes_name
* Mostra phpbb_topics
* Mostra phpbb_topics_watch
* Mostra phpbb_users
* Mostra phpbb_user_group
* Mostra phpbb_vote_desc
* Mostra phpbb_vote_results
* Mostra phpbb_vote_voters
* Mostra phpbb_words

esattamente quelle che vi ho scritto in colore diverso. come fare per eliminarle? e poi...sono davvero "inutili e eliminabili" o ho preso una cantonata?