AD7124 remove extra rx method as its handled by built-ins #1512

All 252 tests pass, 1 006 skipped in 4m 12s

1 258 tests ±0   252 ✔️ ±0 4m 12s ⏱️ -8s
      1 suites ±0 1 006 💤 ±0
      1 files ±0       0 ❌ ±0

Results for commit db5933d. ± Comparison against earlier commit 20bf3cf.