Fix assert when interpolating using unset

Source/core/css/resolver/StyleResolver.cpp

Index: Source/core/css/resolver/StyleResolver.cpp
diff --git a/Source/core/css/resolver/StyleResolver.cpp b/Source/core/css/resolver/StyleResolver.cpp
index 074eeb7c96183fe2185425ff32ef00c2ba0f2bda..87a6994b07974861020804f9ca8cf66863907085 100644
--- a/Source/core/css/resolver/StyleResolver.cpp
+++ b/Source/core/css/resolver/StyleResolver.cpp
@@ -1357,14 +1357,6 @@ void StyleResolver::applyProperties(StyleResolverState& state, const StyleProper
         if (!isPropertyForPass<pass>(property))
             continue;
 
-        if (current.value()->isUnsetValue()) {
-            if (CSSPropertyMetadata::isInheritedProperty(property))
-                StyleBuilder::applyProperty(property, state, cssValuePool().createInheritedValue().get());
-            else
-                StyleBuilder::applyProperty(property, state, cssValuePool().createExplicitInitialValue().get());
-            continue;
-        }
-
         StyleBuilder::applyProperty(current.id(), state, current.value());
     }
 }