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

Source/core/css/parser/CSSPropertyParser.cpp

Index: Source/core/css/parser/CSSPropertyParser.cpp
diff --git a/Source/core/css/parser/CSSPropertyParser.cpp b/Source/core/css/parser/CSSPropertyParser.cpp
index 53e2509071de48e7f1a7052c0f1a9e106bf7618a..d3f7a2c6429227a6f534f06a33fb0f914e287030 100644
--- a/Source/core/css/parser/CSSPropertyParser.cpp
+++ b/Source/core/css/parser/CSSPropertyParser.cpp
@@ -1607,14 +1607,6 @@
     case CSSPropertyUserZoom:
         validPrimitive = false;
         break;
-    // FIXME: crbug.com/154772 Unimplemented css-transforms properties
-    case CSSPropertyBackfaceVisibility:
-    case CSSPropertyPerspective:
-    case CSSPropertyPerspectiveOrigin:
-    case CSSPropertyTransform:
-    case CSSPropertyTransformOrigin:
-    case CSSPropertyTransformStyle:
-        return false;
     default:
         return parseSVGValue(propId, important);
     }