Revert of Add runtime feature and property names for unprefixed CSS Transforms

Source/core/css/CSSComputedStyleDeclaration.cpp

Index: Source/core/css/CSSComputedStyleDeclaration.cpp
diff --git a/Source/core/css/CSSComputedStyleDeclaration.cpp b/Source/core/css/CSSComputedStyleDeclaration.cpp
index 97cd5389a0127b63fd3e23e1c68a543fb99fd5a4..dc77b261b871e3a4d344c4c26e7f39598d29a75b 100644
--- a/Source/core/css/CSSComputedStyleDeclaration.cpp
+++ b/Source/core/css/CSSComputedStyleDeclaration.cpp
@@ -2762,15 +2762,6 @@
             ASSERT_NOT_REACHED();
             break;
 
-        // FIXME: crbug.com/154772 Unimplemented css-transforms properties
-        case CSSPropertyBackfaceVisibility:
-        case CSSPropertyPerspective:
-        case CSSPropertyPerspectiveOrigin:
-        case CSSPropertyTransform:
-        case CSSPropertyTransformOrigin:
-        case CSSPropertyTransformStyle:
-            break;
-
         /* Unimplemented @font-face properties */
         case CSSPropertyFontStretch:
         case CSSPropertySrc: