remove some unused properties

Author: koenpunt

android/src/main/java/com/sbugert/rnadmob/RNAdMobBannerViewManager.java

@@ -170,9 +170,6 @@ public class RNAdMobBannerViewManager extends ViewGroupManager<ReactAdView> {
 
     public static final int COMMAND_LOAD_BANNER = 1;
 
-    private ThemedReactContext mThemedReactContext;
-    private RCTEventEmitter mEventEmitter;
-
     @Override
     public String getName() {
         return REACT_CLASS;

android/src/main/java/com/sbugert/rnadmob/RNAdMobInterstitialAdModule.java

@@ -25,21 +25,22 @@
 
 public class RNAdMobInterstitialAdModule extends ReactContextBaseJavaModule {
 
+    public static final String REACT_CLASS = "RNAdMobInterstitial";
+
     public static final String EVENT_AD_LOADED = "onAdLoaded";
     public static final String EVENT_AD_FAILED_TO_LOAD = "onAdFailedToLoad";
     public static final String EVENT_AD_OPENED = "onAdOpened";
     public static final String EVENT_AD_CLOSED = "onAdClosed";
     public static final String EVENT_AD_LEFT_APPLICATION = "onAdLeftApplication";
 
     InterstitialAd mInterstitialAd;
-    String adUnitID;
     String[] testDevices;
 
     private Promise mRequestAdPromise;
 
     @Override
     public String getName() {
-        return "RNAdMobInterstitial";
+        return REACT_CLASS;
     }
 
     public RNAdMobInterstitialAdModule(ReactApplicationContext reactContext) {

android/src/main/java/com/sbugert/rnadmob/RNAdMobRewardedVideoAdModule.java

@@ -24,6 +24,8 @@
 
 public class RNAdMobRewardedVideoAdModule extends ReactContextBaseJavaModule implements RewardedVideoAdListener {
 
+    public static final String REACT_CLASS = "RNAdMobRewarded";
+
     public static final String EVENT_AD_LOADED = "onAdLoaded";
     public static final String EVENT_AD_FAILED_TO_LOAD = "onAdFailedToLoad";
     public static final String EVENT_AD_OPENED = "onAdOpened";
@@ -40,7 +42,7 @@ public class RNAdMobRewardedVideoAdModule extends ReactContextBaseJavaModule imp
 
     @Override
     public String getName() {
-        return "RNAdMobRewarded";
+        return REACT_CLASS;
     }
 
     public RNAdMobRewardedVideoAdModule(ReactApplicationContext reactContext) {

android/src/main/java/com/sbugert/rnadmob/RNPublisherBannerViewManager.java

@@ -205,9 +205,6 @@ public class RNPublisherBannerViewManager extends ViewGroupManager<ReactPublishe
 
     public static final int COMMAND_LOAD_BANNER = 1;
 
-    private ThemedReactContext mThemedReactContext;
-    private RCTEventEmitter mEventEmitter;
-
     @Override
     public String getName() {
         return REACT_CLASS;