Temporarily disable RDA targets to pass CI

SenRamakri · SenRamakri · commit 7b3f30c425eb · 2019-02-28T11:53:01.000-06:00
diff --git a/targets/targets.json b/targets/targets.json
@@ -8121,7 +8121,7 @@
             "FLASH",
             "TRNG"
         ],
-        "release_versions": ["2", "5"]
+        "release_versions": []
     },
     "UNO_91H": {
         "inherits": ["RDA5981X"],
