Revert of [runtime] Introduce maps for the likely cases of FromPropertyDescriptor.

src/property-descriptor.h

Index: src/property-descriptor.h
diff --git a/src/property-descriptor.h b/src/property-descriptor.h
index cba43ed334f05a9a15e645e0949eb4e4ff79ddfa..5fbbfa36ec263de2412a0fad6383d59f118c6c64 100644
--- a/src/property-descriptor.h
+++ b/src/property-descriptor.h
@@ -55,16 +55,6 @@
   bool is_empty() const {
     return !has_enumerable() && !has_configurable() && !has_writable() &&
            !has_value() && !has_get() && !has_set();
-  }
-
-  bool IsRegularAccessorProperty() const {
-    return has_configurable() && has_enumerable() && !has_value() &&
-           !has_writable() && has_get() && has_set();
-  }
-
-  bool IsRegularDataProperty() const {
-    return has_configurable() && has_enumerable() && has_value() &&
-           has_writable() && !has_get() && !has_set();
   }
 
   bool enumerable() const { return enumerable_; }