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This thread is resolved. Here is a description of the problem and solution.
Problem:After deinstalling WPML the database still has WPML items
Solution:RESET removes settings and _icl database tables only but does not interfere with the rest of your tables therefore some information is left over behind.
there are still posts in wp_posts that hold the information for both languages
( pages,posts categories and tags x times the languages that you had)
also do note that in postmeta there are meta info that remains like for duplicate_of
The remain information is not something that would slow down your sites performance but If you would like to remove the tables you can ,
ofcourse do take a full site and database backup before doing so!
My recommendation is always to deal with the database very carefully.