deleted double used comments
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@ -133,10 +133,6 @@ int MarlinSerial::read(void) {
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}
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void MarlinSerial::flush() {
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// don't reverse this or there may be problems if the RX interrupt
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// occurs after reading the value of rx_buffer_head but before writing
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// the value to rx_buffer_tail; the previous value of rx_buffer_head
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// may be written to rx_buffer_tail, making it appear as if the buffer
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// don't reverse this or there may be problems if the RX interrupt
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// occurs after reading the value of rx_buffer_head but before writing
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// the value to rx_buffer_tail; the previous value of rx_buffer_head
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