drop 'orphan' property

sky/engine/build/scripts/templates/StyleBuilderFunctions.cpp.tmpl

 {% from 'macros.tmpl' import license %}
 {#
     This file is for property handlers which use the templating engine to
     reduce (handwritten) code duplication.
 
     The `properties' dict can be used to access a property's parameters in
     jinja2 templates (i.e. setter, getter, initial, type_name)
 #}
 #include "config.h"
 #include "StyleBuilderFunctions.h"
@@ skipping 125 matching lines @@
         return;
 
     CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
     if (primitiveValue->getValueID() == {{auto_identity}})
         state.style()->{{auto_setter}}();
     else
         {{convert_and_set_value(property)}}
 }
 {% endmacro %}
 {{apply_auto('CSSPropertyClip')}}
-{{apply_auto('CSSPropertyOrphans')}}
 {{apply_auto('CSSPropertyWidows')}}
 {{apply_auto('CSSPropertyZIndex')}}
 
 static bool lengthTypeAndValueMatch(const Length& length, LengthType type, float value)
 {
     return length.type() == type && length.value() == value;
 }
 
 static bool lengthTypeAndValueMatch(const LengthBox& lengthBox, LengthType type, float value)
 {
@@ skipping 285 matching lines @@
         state.style()->set{{alignment_type}}OverflowAlignment(*pairValue->second());
     } else {
         state.style()->set{{alignment_type}}(*primitiveValue);
     }
 }
 {% endmacro %}
 {{apply_alignment('CSSPropertyAlignItems', 'AlignItems')}}
 {{apply_alignment('CSSPropertyAlignSelf', 'AlignSelf')}}
 
 } // namespace blink