Remove IRS/INS vs Baro ROCD check improves detection changes

At the cost of multi match. Since these are valid packets we should aim at reducing flase postives instead of rejecting correct messages

src/main/java/aero/t2s/modes/decoder/df/bds/Bds60.java

@@ -116,13 +116,6 @@ public Bds60(short[] data) {
  }
  }
  }
-
- if (statusBaroRocd && statusIrsRocd) {
- if (Math.abs(irsRocd - baroRocd) > 1500) {
- invalidate();
- return;
- }
- }
  }
 
  private double machToCas(double altitude) {

src/test/java/aero/t2s/modes/decoder/df/DfRealMessageTest.java

@@ -141,6 +141,31 @@ public void test_df21_bds60_00000() throws UnknownDownlinkFormatException {
  assertEquals(300.0, bds.getMagneticHeading(), 0.1);
  }
 
+ @Test
+ public void test_df21_bds60_406ECD() throws UnknownDownlinkFormatException {
+ DownlinkFormat df = testMessage("A8000C98A549F33461E40552947D");
+
+ assertInstanceOf(DF21.class, df);
+ DF21 df21 = (DF21) df;
+ assertEquals("406ECD", df.getIcao()); // Military / corrupt transponder
+ assertEquals(5221, df21.getModeA());
+
+ assertTrue(df21.isValid());
+ assertInstanceOf(Bds60.class, df21.getBds());
+
+ Bds60 bds = (Bds60) df21.getBds();
+ assertTrue(bds.isStatusIrsRocd());
+ assertEquals(160, bds.getIrsRocd(), 0.1);
+ assertTrue(bds.isStatusBaroRocd());
+ assertEquals(1920, bds.getBaroRocd(), 0.1);
+ assertTrue(bds.isStatusIas());
+ assertEquals(249, bds.getIas());
+ assertTrue(bds.isStatusMach());
+ assertEquals(0.77, bds.getMach(), 0.1);
+ assertTrue(bds.isStatusMagneticHeading());
+ assertEquals(104.7, bds.getMagneticHeading(), 0.1);
+ }
+
  private DownlinkFormat testMessage(String message) throws UnknownDownlinkFormatException {
  Decoder decoder = new Decoder(new HashMap<>(), 50, 2, ModeSDatabase.createDatabase());