Reapplies patch that removes the clear_bits macro

src/can/bus.rs

@@ -287,28 +287,6 @@ macro_rules! hal {
                                             if2_da2, if2_db2, if2_db2),
                                 };
 
-                                macro_rules! clear_bits {
-                                    ($cmdmsk: ident, $cmdmsk_r: ident, $cmdreq: ident) => {
-                                        // reset NEWDAT = 0
-                                        // reset INTPND = 0
-                                        unsafe {
-                                            self.can.$cmdmsk_r().write(|w| w.newdat().bit(true)
-                                                .clrintpnd().bit(true)
-                                                .wr_rd().bit(true));
-
-                                            // write MessageNum to CANIFx_CMDREQ
-                                            self.can.$cmdreq.write(|w| w.messnum().bits(message_num));
-                                            while self.can.$cmdreq.read().busy().bit() {}
-                                        }
-                                    }
-                                }
-
-                                // Reset newdata and intpnd
-                                match iface {
-                                    MsgIface::Iface1 => clear_bits!(if1_cmdmsk, if1_cmdmsk_r, if1_cmdreq),
-                                    MsgIface::Iface2 => clear_bits!(if2_cmdmsk, if2_cmdmsk_r, if2_cmdreq),
-                                };
-
                                 if !newdat { // No data in the message
                                     return Ok(self.data_buf.clone())
                                 } else {