upgrade to RxDart 0.23 (pauldemarco#468)

remove unused, invalid plugin test

Author: dustin-graham

lib/src/bluetooth_characteristic.dart

@@ -22,7 +22,7 @@ class BluetoothCharacteristic {
   }
 
   BehaviorSubject<List<int>> _value;
-  Stream<List<int>> get value => Observable.merge([
+  Stream<List<int>> get value => Rx.merge([
         _value.stream,
         _onValueChangedStream,
       ]);

lib/src/flutter_blue.dart

@@ -87,7 +87,7 @@ class FlutterBlue {
     final killStreams = <Stream>[];
     killStreams.add(_stopScanPill);
     if (timeout != null) {
-      killStreams.add(Observable.timer(null, timeout));
+      killStreams.add(Rx.timer(null, timeout));
     }
 
     // Clear scan results list
@@ -102,10 +102,8 @@ class FlutterBlue {
       throw e;
     }
 
-    yield* Observable(FlutterBlue.instance._methodStream
-            .where((m) => m.method == "ScanResult")
-            .map((m) => m.arguments))
-        .takeUntil(Observable.merge(killStreams))
+    yield* FlutterBlue.instance._methodStream.where((m) => m.method == "ScanResult").map((m) => m.arguments)
+        .takeUntil(Rx.merge(killStreams))
         .doOnDone(stopScan)
         .map((buffer) => new protos.ScanResult.fromBuffer(buffer))
         .map((p) {

pubspec.yaml

@@ -14,7 +14,7 @@ dependencies:
     sdk: flutter
   convert: "^2.1.1"
   protobuf: "^1.0.0"
-  rxdart: "^0.22.0"
+  rxdart: ^0.23.1
 
 dev_dependencies:
   flutter_test: