Update ids.xsd

Development/ids.xsd

@@ -1,5 +1,5 @@
-<!-- this 0.9.7 version is currently under voting by buildingSMART Standards Committee. When approved (expected June/July 2024) this will be renamed to 1.0 without changes -->
-<xs:schema xmlns:ids="http://standards.buildingsmart.org/IDS" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:altova="http://www.altova.com/xml-schema-extensions" targetNamespace="http://standards.buildingsmart.org/IDS" elementFormDefault="qualified" attributeFormDefault="unqualified" version="0.9.7">
+<!-- this 0.9.7 version is approved by buildingSMART Standards Committee. This will be renamed to 1.0 with a minor update to reflect official IFC versions -->
+<xs:schema xmlns:ids="http://standards.buildingsmart.org/IDS" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" targetNamespace="http://standards.buildingsmart.org/IDS" elementFormDefault="qualified" attributeFormDefault="unqualified" version="0.9.7">
 	<xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="http://www.w3.org/2001/xml.xsd"/>
 	<xs:import namespace="http://www.w3.org/2001/XMLSchema" schemaLocation="http://www.w3.org/2001/XMLSchema.xsd"/>
 	<xs:import namespace="http://www.w3.org/2001/XMLSchema-instance" schemaLocation="http://www.w3.org/2001/XMLSchema-instance"/>
@@ -64,12 +64,6 @@
 			<xs:element name="property" type="ids:propertyType" minOccurs="0" maxOccurs="unbounded"/>
 			<xs:element name="material" type="ids:materialType" minOccurs="0" maxOccurs="unbounded"/>
 		</xs:sequence>
-		<!-- Please note there is an implementation agreement on the use of minOccurs and maxOccurs.
-			Valid values are: 
-			a. 0 to unbounded, meaning Optional
-			b. 1 to unbounded, meaning Required
-			c. 0 to 0, meaning Prohibited
-		 -->
 		<xs:attributeGroup ref="xs:occurs"/>
 	</xs:complexType>
 	<xs:complexType name="propertyType">