diff --git a/bin/addons/base/rng/board.rng b/bin/addons/base/rng/board.rng
deleted file mode 100644
index 73477113f62..00000000000
--- a/bin/addons/base/rng/board.rng
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<rng:grammar xmlns:rng="http://relaxng.org/ns/structure/1.0">
-    <rng:define name="any">
-      <rng:element>
-        <rng:anyName/>
-        <rng:zeroOrMore>
-            <rng:choice>
-            <rng:attribute>
-            <rng:anyName/>
-            </rng:attribute>
-            <rng:text/>
-            <rng:ref name="any"/>
-            </rng:choice>
-        </rng:zeroOrMore>
-        </rng:element>
-    </rng:define>
-
-    <rng:start>
-                    <rng:ref name="any" />
-    </rng:start>
-</rng:grammar>
diff --git a/bin/addons/base/rng/calendar.rng b/bin/addons/base/rng/calendar.rng
deleted file mode 100644
index 73477113f62..00000000000
--- a/bin/addons/base/rng/calendar.rng
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<rng:grammar xmlns:rng="http://relaxng.org/ns/structure/1.0">
-    <rng:define name="any">
-      <rng:element>
-        <rng:anyName/>
-        <rng:zeroOrMore>
-            <rng:choice>
-            <rng:attribute>
-            <rng:anyName/>
-            </rng:attribute>
-            <rng:text/>
-            <rng:ref name="any"/>
-            </rng:choice>
-        </rng:zeroOrMore>
-        </rng:element>
-    </rng:define>
-
-    <rng:start>
-                    <rng:ref name="any" />
-    </rng:start>
-</rng:grammar>
diff --git a/bin/addons/base/rng/form.rng b/bin/addons/base/rng/form.rng
deleted file mode 100644
index b8a93c67549..00000000000
--- a/bin/addons/base/rng/form.rng
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<rng:grammar xmlns:rng="http://relaxng.org/ns/structure/1.0">
-    <rng:define name="any">
-        <rng:element>
-            <rng:anyName/>
-            <rng:zeroOrMore>
-                <rng:choice>
-                    <rng:attribute>
-                        <rng:anyName/>
-                    </rng:attribute>
-                    <rng:text/>
-                    <rng:ref name="any"/>
-                </rng:choice>
-            </rng:zeroOrMore>
-        </rng:element>
-    </rng:define>
-
-    <rng:start>
-        <rng:ref name="any" />
-    </rng:start>
-</rng:grammar>
diff --git a/bin/addons/base/rng/gallery.rng b/bin/addons/base/rng/gallery.rng
deleted file mode 100644
index 73477113f62..00000000000
--- a/bin/addons/base/rng/gallery.rng
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<rng:grammar xmlns:rng="http://relaxng.org/ns/structure/1.0">
-    <rng:define name="any">
-      <rng:element>
-        <rng:anyName/>
-        <rng:zeroOrMore>
-            <rng:choice>
-            <rng:attribute>
-            <rng:anyName/>
-            </rng:attribute>
-            <rng:text/>
-            <rng:ref name="any"/>
-            </rng:choice>
-        </rng:zeroOrMore>
-        </rng:element>
-    </rng:define>
-
-    <rng:start>
-                    <rng:ref name="any" />
-    </rng:start>
-</rng:grammar>
diff --git a/bin/addons/base/rng/graph.rng b/bin/addons/base/rng/graph.rng
deleted file mode 100644
index 73477113f62..00000000000
--- a/bin/addons/base/rng/graph.rng
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<rng:grammar xmlns:rng="http://relaxng.org/ns/structure/1.0">
-    <rng:define name="any">
-      <rng:element>
-        <rng:anyName/>
-        <rng:zeroOrMore>
-            <rng:choice>
-            <rng:attribute>
-            <rng:anyName/>
-            </rng:attribute>
-            <rng:text/>
-            <rng:ref name="any"/>
-            </rng:choice>
-        </rng:zeroOrMore>
-        </rng:element>
-    </rng:define>
-
-    <rng:start>
-                    <rng:ref name="any" />
-    </rng:start>
-</rng:grammar>
diff --git a/bin/addons/base/rng/inherit.rng b/bin/addons/base/rng/inherit.rng
deleted file mode 100644
index 73477113f62..00000000000
--- a/bin/addons/base/rng/inherit.rng
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<rng:grammar xmlns:rng="http://relaxng.org/ns/structure/1.0">
-    <rng:define name="any">
-      <rng:element>
-        <rng:anyName/>
-        <rng:zeroOrMore>
-            <rng:choice>
-            <rng:attribute>
-            <rng:anyName/>
-            </rng:attribute>
-            <rng:text/>
-            <rng:ref name="any"/>
-            </rng:choice>
-        </rng:zeroOrMore>
-        </rng:element>
-    </rng:define>
-
-    <rng:start>
-                    <rng:ref name="any" />
-    </rng:start>
-</rng:grammar>
diff --git a/bin/addons/base/rng/tree.rng b/bin/addons/base/rng/tree.rng
deleted file mode 100644
index 73477113f62..00000000000
--- a/bin/addons/base/rng/tree.rng
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<rng:grammar xmlns:rng="http://relaxng.org/ns/structure/1.0">
-    <rng:define name="any">
-      <rng:element>
-        <rng:anyName/>
-        <rng:zeroOrMore>
-            <rng:choice>
-            <rng:attribute>
-            <rng:anyName/>
-            </rng:attribute>
-            <rng:text/>
-            <rng:ref name="any"/>
-            </rng:choice>
-        </rng:zeroOrMore>
-        </rng:element>
-    </rng:define>
-
-    <rng:start>
-                    <rng:ref name="any" />
-    </rng:start>
-</rng:grammar>