removed extra import

migrations.moon

@@ -1,5 +1,4 @@
 import create_table, rename_column, add_column, types from require "lapis.db.schema"
-import trim from require "lapis.util"
 import process_tags from require "helpers"
 import Tracks, Tags from require "models"
 
@@ -48,7 +47,7 @@ import Tracks, Tags from require "models"
   [6]: =>
     return true -- formerly a bad migration
   [7]: =>
-    -- WARNING: removes all tags!
+    -- WARNING: removes all tags fields!
     for track in *Tracks\select "*"
       tags = ""
       for field in *{"artist", "mood", "link", "genre"}