diff --git a/gtk/gtkbuilder.rnc b/gtk/gtkbuilder.rnc
deleted file mode 100644
index 8b2182d801..0000000000
--- a/gtk/gtkbuilder.rnc
+++ /dev/null
@@ -1,95 +0,0 @@
-start = element interface {
-  attribute domain { text } ?,
-  ( requires | object | template | menu ) *
-}
-
-requires = element requires {
-  attribute lib { text },
-  attribute version { text }
-}
-
-object = element object {
-  attribute id { xsd:ID } ?,
-  attribute class { text },
-  attribute type-func { text } ?,
-  attribute constructor { text } ?,
-  (property | signal | child | ANY) *
-}
-
-template = element template {
-  attribute class { text },
-  attribute parent { text },
-  (property | signal | child | ANY) *
-}
-
-property = element property {
-  attribute name { text },
-  attribute translatable { "yes" | "no" } ?,
-  attribute comments { text } ?,
-  attribute context { text } ?,
-  (attribute bind-source { text },
-   attribute bind-property { text },
-   attribute bind-flags { text } ?) ?,
-  text ?
-}
-
-signal = element signal {
-  attribute name { text },
-  attribute handler { text },
-  attribute after { text } ?,
-  attribute swapped { text } ?,
-  attribute object { text } ?,
-  attribute last_modification_time { text } ?,
-  empty
-}
-
-child = element child {
-  attribute type { text } ?,
-  attribute internal-child { text } ?,
-  (object | ANY)*
-}
-
-menu = element menu {
-  attribute id { xsd:ID },
-  attribute domain { text } ?,
-  (item | submenu | section) *
-}
-
-item = element item {
-  attribute id { xsd:ID } ?,
-  (attribute_ | link) *
-}
-
-attribute_ = element attribute {
-  attribute name { text },
-  attribute type { text } ?,
-  attribute translatable { "yes" | "no" } ?,
-  attribute context { text } ?,
-  attribute comments { text } ?,
-  text ?
-}
-
-link = element link {
-  attribute id { xsd:ID } ?,
-  attribute name { text },
-  item *
-}
-
-submenu = element submenu {
-  attribute id { xsd:ID } ?,
-  (attribute_ | item | submenu | section) *
-}
-
-section = element section {
-  attribute id { xsd:ID } ?,
-  (attribute_ | item | submenu | section) *
-}
-
-ANY = element * - (interface | requires | object | template | property | signal | child | menu | item | attribute | link | submenu | section) {
-  attribute * { text } *,
-  (ALL * & text ?)
-}
-ALL = element * {
-  attribute * { text } *,
-  (ALL * & text ?)
-}