Remove string attribute from views

issue2350

view/line_group_form.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
-<form string="Statement Line Group">
+<form>
     <label name="statement"/>
     <field name="statement"/>
     <label name="journal"/>

view/line_group_list.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
-<tree string="Statement Line Groups">
+<tree>
     <field name="journal"/>
     <field name="statement"/>
     <field name="number"/>

view/statement_form.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
-<form string="Statement">
+<form>
     <label name="name"/>
     <field name="name" colspan="3"/>
     <label name="journal"/>

view/statement_journal_form.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
-<form string="Statement Journal">
+<form>
     <label name="name"/>
     <field name="name"/>
     <label name="journal"/>

view/statement_journal_tree.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
-<tree string="Statement Journals">
+<tree>
     <field name="name"/>
     <field name="journal"/>
     <field name="currency"/>

view/statement_line_form.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
-<form string="Statement Line">
+<form>
     <label name="statement"/>
     <field name="statement" colspan="3"/>
     <label name="number"/>

view/statement_line_tree.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
-<tree string="Statement Lines">
+<tree>
     <field name="statement"/>
     <field name="number"/>
     <field name="date"/>

view/statement_line_tree_editable.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
-<tree string="Statement Lines" editable="bottom" sequence="sequence">
+<tree editable="bottom" sequence="sequence">
     <field name="number"/>
     <field name="date"/>
     <field name="amount" sum="Amount"/>

view/statement_tree.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
-<tree string="Statements">
+<tree>
     <field name="journal"/>
     <field name="name"/>
     <field name="date"/>