Revert of Combine 2 exclusions in Layout Opportunity Tree if they shadow each other

third_party/WebKit/Source/core/layout/ng/ng_exclusion.cc

Index: third_party/WebKit/Source/core/layout/ng/ng_exclusion.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_exclusion.cc b/third_party/WebKit/Source/core/layout/ng/ng_exclusion.cc
index 28e9a58601e6722e5a890ecdaf6803729ddd2eda..e5f711bacb67d42b1452d8de0fdf2610c7a8d14f 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_exclusion.cc
+++ b/third_party/WebKit/Source/core/layout/ng/ng_exclusion.cc
@@ -15,35 +15,6 @@
 String NGExclusion::ToString() const {
   return String::format("Rect: %s Type: %d", rect.ToString().ascii().data(),
                         type);
-}
-
-bool NGExclusion::MaybeCombineWith(const NGExclusion& other) {
-  if (other.rect.BlockEndOffset() < rect.BlockEndOffset())
-    return false;
-
-  if (other.type != type)
-    return false;
-
-  switch (other.type) {
-    case NGExclusion::kFloatLeft: {
-      if (other.rect.offset == rect.InlineEndBlockStartOffset()) {
-        rect.size = {other.rect.InlineSize() + rect.InlineSize(),
-                     other.rect.BlockSize()};
-        return true;
-      }
-    }
-    case NGExclusion::kFloatRight: {
-      if (rect.offset == other.rect.InlineEndBlockStartOffset()) {
-        rect.offset = other.rect.offset;
-        rect.size = {other.rect.InlineSize() + rect.InlineSize(),
-                     other.rect.BlockSize()};
-        return true;
-      }
-    }
-    default:
-      NOTREACHED();
-      return false;
-  }
 }
 
 std::ostream& operator<<(std::ostream& stream, const NGExclusion& value) {