--- ./runtime/device/devkernel.hpp-old	2020-01-26 03:10:27.302812740 -0700
+++ ./runtime/device/devkernel.hpp	2020-01-26 04:31:19.249549378 -0700
@@ -111,8 +111,7 @@
   {"HiddenPrintfBuffer",      ValueKind::HiddenPrintfBuffer},
   {"HiddenDefaultQueue",      ValueKind::HiddenDefaultQueue},
   {"HiddenCompletionAction",  ValueKind::HiddenCompletionAction},
-  {"HiddenMultigridSyncArg",  ValueKind::HiddenMultiGridSyncArg},
-  {"HiddenHostcallBuffer",    ValueKind::HiddenHostcallBuffer},
+  {"HiddenMultigridSyncArg",  ValueKind::HiddenMultiGridSyncArg}
 };
 
 static const std::map<std::string,ValueType> ArgValueType =
@@ -226,8 +225,7 @@
   {"hidden_printf_buffer",      ValueKind::HiddenPrintfBuffer},
   {"hidden_default_queue",      ValueKind::HiddenDefaultQueue},
   {"hidden_completion_action",  ValueKind::HiddenCompletionAction},
-  {"hidden_multigrid_sync_arg", ValueKind::HiddenMultiGridSyncArg},
-  {"hidden_hostcall_buffer",    ValueKind::HiddenHostcallBuffer},
+  {"hidden_multigrid_sync_arg", ValueKind::HiddenMultiGridSyncArg}
 };
 
 static const std::map<std::string,ValueType> ArgValueTypeV3 =
@@ -322,8 +320,7 @@
     ImageObject = 11,
     SamplerObject = 12,
     QueueObject = 13,
-    HiddenMultiGridSync = 14,
-    HiddenHostcallBuffer = 15,
+    HiddenMultiGridSync = 14
   };
   clk_value_type_t type_;  //!< The parameter's type
   size_t offset_;          //!< Its offset in the parameter's stack