sd-bus: drop some unused fields from the sd_bus_message structure

src/libsystemd/sd-bus/bus-message.c

@@ -127,7 +127,6 @@ static void message_free(sd_bus_message *m) {
         if (m->iovec != m->iovec_fixed)
                 free(m->iovec);
 
-        m->destination_ptr = mfree(m->destination_ptr);
         message_reset_containers(m);
         free(m->root_container.signature);
         free(m->root_container.offsets);

src/libsystemd/sd-bus/bus-message.h

@@ -136,10 +136,6 @@ struct sd_bus_message {
 
         usec_t timeout;
 
-        char sender_buffer[3 + DECIMAL_STR_MAX(uint64_t) + 1];
-        char destination_buffer[3 + DECIMAL_STR_MAX(uint64_t) + 1];
-        char *destination_ptr;
-
         size_t header_offsets[_BUS_MESSAGE_HEADER_MAX];
         unsigned n_header_offsets;
 };