remove ipc/struct_destructor_macros.h

https://chromium-review.googlesource.com/c/1261082

atom/common/common_message_generator.cc

@@ -9,13 +9,7 @@
 // Generate constructors.
 #include "ipc/struct_constructor_macros.h"
 
-// must go after struct_contructor_macros
-#include "atom/common/common_message_generator.h"
-
-// Generate destructors.
-#include "ipc/struct_destructor_macros.h"
-
-// must go after struct_destructor_macros
+// lint: must come after struct_constructor_macros.
 #include "atom/common/common_message_generator.h"
 
 // Generate param traits write methods.
@@ -34,4 +28,4 @@ namespace IPC {
 #include "ipc/param_traits_log_macros.h"
 namespace IPC {
 #include "atom/common/common_message_generator.h"
-}  // namespace IPC
+}  // namespace IPC