Remove checkIfFeaturedImage function

This function has been replaced with functionality to grab a post's initial ID, as can be seen in the previous couple of commits.

packages/react-native-bridge/android/react-native-bridge/src/main/java/org/wordpress/mobile/ReactNativeGutenbergBridge/GutenbergBridgeJS2Parent.java

@@ -124,8 +124,6 @@ public static MediaType getEnum(String value) {
 
     void setFeaturedImage(int mediaId);
 
-    void checkIfFeaturedImage(int mediaId);
-
     void editorDidEmitLog(String message, LogLevel logLevel);
 
     void editorDidAutosave();

packages/react-native-bridge/android/react-native-bridge/src/main/java/org/wordpress/mobile/ReactNativeGutenbergBridge/RNReactNativeGutenbergBridgeModule.java

@@ -232,11 +232,6 @@ public void setFeaturedImage(final int mediaId) {
         mGutenbergBridgeJS2Parent.setFeaturedImage(mediaId);
     }
 
-    @ReactMethod
-    public void checkIfFeaturedImage(final int mediaId) {
-        mGutenbergBridgeJS2Parent.checkIfFeaturedImage(mediaId);
-    }
-
     @ReactMethod
     public void requestImageFullscreenPreview(String mediaUrl) {
         mGutenbergBridgeJS2Parent.requestImageFullscreenPreview(mediaUrl);

packages/react-native-bridge/android/react-native-bridge/src/main/java/org/wordpress/mobile/WPAndroidGlue/WPAndroidGlueCode.java

@@ -175,7 +175,6 @@ public interface OnReattachMediaSavingQueryListener {
 
     public interface OnSetFeaturedImageListener {
         void onSetFeaturedImageButtonClicked(int mediaId);
-        void checkIfFeaturedImage(int mediaId);
     }
 
     public interface OnEditorMountListener {
@@ -328,11 +327,6 @@ public void setFeaturedImage(int mediaId) {
                 mOnSetFeaturedImageListener.onSetFeaturedImageButtonClicked(mediaId);
             }
 
-            @Override
-            public void checkIfFeaturedImage(int mediaId) {
-                mOnSetFeaturedImageListener.checkIfFeaturedImage(mediaId);
-            }
-
             @Override
             public void editorDidMount(ReadableArray unsupportedBlockNames) {
                 mOnEditorMountListener.onEditorDidMount(unsupportedBlockNames.toArrayList());

packages/react-native-bridge/index.js

@@ -248,10 +248,6 @@ export function setFeaturedImage( mediaId ) {
 	return RNReactNativeGutenbergBridge.setFeaturedImage( mediaId );
 }
 
-export function checkIfFeaturedImage( mediaId ) {
-	return RNReactNativeGutenbergBridge.checkIfFeaturedImage( mediaId );
-}
-
 export function getOtherMediaOptions( filter, callback ) {
 	return RNReactNativeGutenbergBridge.getOtherMediaOptions(
 		filter,

packages/react-native-editor/android/app/src/main/java/com/gutenberg/MainApplication.java

@@ -116,10 +116,6 @@ public void requestImageUploadCancel(int mediaId) {
             public void setFeaturedImage(int mediaId) {
             }
 
-            @Override
-            public void checkIfFeaturedImage(int mediaId) {
-            }
-
             @Override
             public void editorDidMount(ReadableArray unsupportedBlockNames) {
             }