Revert "Consider root and current section's content type if set in front matter"

This reverts commit c790029e1d.

hugolib/page.go

@@ -412,26 +412,12 @@ func (p *Page) createLayoutDescriptor() output.LayoutDescriptor {
 	default:
 	}
 
-	var typeCurrentSection string
-	var typeRootSection string
-	curr := p.CurrentSection()
-	// Make sure we use the contentType only. This is the value from front matter.
-	if curr != nil {
-		typeCurrentSection = curr.contentType
-	}
-	first := p.FirstSection()
-	if first != nil {
-		typeRootSection = first.contentType
-	}
-
 	return output.LayoutDescriptor{
-		Kind:               p.Kind,
-		Type:               p.Type(),
-		Lang:               p.Lang(),
-		Layout:             p.Layout,
-		Section:            section,
-		TypeCurrentSection: typeCurrentSection,
-		TypeFirstSection:   typeRootSection,
+		Kind:    p.Kind,
+		Type:    p.Type(),
+		Lang:    p.Lang(),
+		Layout:  p.Layout,
+		Section: section,
 	}
 }