deleted db install, which caused an error when fresh install

db/install.xml

-<?xml version="1.0" encoding="UTF-8" ?>
-<XMLDB PATH="course/format/iena/db" VERSION="20180312" COMMENT="XMLDB file for Moodle course/format/iena"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:noNamespaceSchemaLocation="../../../../lib/xmldb/xmldb.xsd"
->
-  <!--<TABLES>
-    <TABLE NAME="format_iena" COMMENT="Default comment for format_iena, please edit me">
-      <FIELDS>
-        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
-        <FIELD NAME="date_rendu" TYPE="text" NOTNULL="false" SEQUENCE="false"/>
-        <FIELD NAME="presence" TYPE="int" LENGTH="1" NOTNULL="false" SEQUENCE="false"/>
-        <FIELD NAME="id_section" TYPE="int" LENGTH="20" NOTNULL="false" SEQUENCE="false"/>
-        <FIELD NAME="day_same" TYPE="int" LENGTH="1" NOTNULL="false" SEQUENCE="false"/>
-        <FIELD NAME="day_before" TYPE="int" LENGTH="1" NOTNULL="false" SEQUENCE="false"/>
-        <FIELD NAME="day_after" TYPE="int" LENGTH="1" NOTNULL="false" SEQUENCE="false"/>
-        <FIELD NAME="nb_days_before" TYPE="int" LENGTH="20" NOTNULL="false" SEQUENCE="false"/>
-        <FIELD NAME="nb_days_after" TYPE="int" LENGTH="20" NOTNULL="false" SEQUENCE="false"/>
-        <FIELD NAME="hide" TYPE="int" LENGTH="20" NOTNULL="false" SEQUENCE="false"/>
-      </FIELDS>
-      <KEYS>
-        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
-      </KEYS>
-    </TABLE>
-  </TABLES>-->
-</XMLDB>
\ No newline at end of file