Update features/rules/GRF/GRF008_Rigid-operation-units.feature

Co-authored-by: Scott Lecher <civilx64@gmail.com>

Author: Ghesselink

features/rules/GRF/GRF008_Rigid-operation-units.feature

@@ -7,7 +7,7 @@ The rule verifies that correct unit types are assigned to rigid operation coordi
 
   Scenario Outline: Correct rigid operation coordinate units
 
-    Given A model with Schema 'IFC4' or 'IFC4.3'
+    Given A model with Schema 'IFC4.3'
     Given an .IfcRigidOperation.
 
     Then The type of attribute .<attribute>. must be 'IfcLengthMeasure' or 'IfcPlaneAngleUnit'