Revert "Allow to set display "inline" on legend element"

third_party/WebKit/Source/core/layout/LayoutFieldset.cpp

Index: third_party/WebKit/Source/core/layout/LayoutFieldset.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutFieldset.cpp b/third_party/WebKit/Source/core/layout/LayoutFieldset.cpp
index 7766abd3897668ed0cbabddcbf52d8119b7d0f7c..4768383f5be022928a5ccc4fa0f5d645eab0f4c0 100644
--- a/third_party/WebKit/Source/core/layout/LayoutFieldset.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutFieldset.cpp
@@ -217,10 +217,8 @@ LayoutBox* LayoutFieldset::findInFlowLegend() const {
     if (legend->isFloatingOrOutOfFlowPositioned())
       continue;
 
-    if (isHTMLLegendElement(legend->node())) {
-      if (legend->isBox())
-        return toLayoutBox(legend);
-    }
+    if (isHTMLLegendElement(legend->node()))
+      return toLayoutBox(legend);
   }
   return nullptr;
 }