====== removeSchema ======
~~NOTOC~~
<WRAP right box>
  array removeSchema (
    string $filename, 
    optional bool $returnSchema=false
     )
</WRAP>
===== Description =====
Loads an XML schema from a file and converts it to uninstallation SQL.


Call this method to load the specified schema (see the DTD for the proper format) from the filesystem and generate the SQL necessary to remove the database described.

The method returns an array of SQL queries, ready to execute. In order to execute the generated SQL, is must be passed to [[v5:dictionary:executesqlarray]].

If the schema file cannot be opened or the SQL generation fails, the method returns false.