Manually revert 74a834b

This should resolve the issue experienced #1590 was trying to resolve.

volatility3/framework/symbols/linux/extensions/__init__.py

@@ -1574,9 +1574,7 @@ class vfsmount(objects.StructType):
             'True' if the kernel lacks the 'mount' struct, typically indicating kernel < 3.3.
         """
 
-        return (not self._context.symbol_space.has_type("mount")) and self.has_member(
-            "mnt_parent"
-        )
+        return self.has_member("mnt_parent")
 
     def is_equal(self, vfsmount_ptr) -> bool:
         """Helper to make sure it is comparing two pointers to 'vfsmount'.