Removed RESET_REASON for NRF51_DK board

rajkan01 · Filip Jagodzinski · commit 727070e04aae · 2019-05-24T12:32:53.000+02:00
diff --git a/targets/targets.json b/targets/targets.json
@@ -6873,7 +6873,6 @@
             "PORTINOUT",
             "PORTOUT",
             "PWMOUT",
-            "RESET_REASON",
             "SERIAL",
             "SERIAL_ASYNCH",
             "SERIAL_FC",
