chore(sensors_plus): Remove stray override annotations (#3735)

Author: srawlins

packages/sensors_plus/sensors_plus/lib/sensors_plus.dart

@@ -35,7 +35,6 @@ Stream<MagnetometerEvent> get magnetometerEvents {
 
 /// Returns a broadcast stream of events from the device accelerometer at the
 /// given sampling frequency.
-@override
 Stream<AccelerometerEvent> accelerometerEventStream({
   Duration samplingPeriod = SensorInterval.normalInterval,
 }) {
@@ -44,7 +43,6 @@ Stream<AccelerometerEvent> accelerometerEventStream({
 
 /// Returns a broadcast stream of events from the device gyroscope at the
 /// given sampling frequency.
-@override
 Stream<GyroscopeEvent> gyroscopeEventStream({
   Duration samplingPeriod = SensorInterval.normalInterval,
 }) {
@@ -53,7 +51,6 @@ Stream<GyroscopeEvent> gyroscopeEventStream({
 
 /// Returns a broadcast stream of events from the device accelerometer with
 /// gravity removed at the given sampling frequency.
-@override
 Stream<UserAccelerometerEvent> userAccelerometerEventStream({
   Duration samplingPeriod = SensorInterval.normalInterval,
 }) {
@@ -62,7 +59,6 @@ Stream<UserAccelerometerEvent> userAccelerometerEventStream({
 
 /// Returns a broadcast stream of events from the device magnetometer at the
 /// given sampling frequency.
-@override
 Stream<MagnetometerEvent> magnetometerEventStream({
   Duration samplingPeriod = SensorInterval.normalInterval,
 }) {