Remove workaround for passing functional interfaces to @js methods

Author: patrick96

native-image/wasm-javac/src/main/java/com/example/WebMain.java

@@ -37,14 +37,6 @@ public class WebMain {
     public static void main(String[] args) {
         // Ensure file manager is initialized
         JavacCompilerWrapper.getFm();
-        try {
-            // TODO GR-62854 Here to ensure handleEvent and run is generated. Remove once objects
-            // passed to @JS methods automatically have their SAM registered.
-            sink(EventHandler.class.getDeclaredMethod("handleEvent", JSObject.class));
-            sink(Runnable.class.getDeclaredMethod("run"));
-        } catch (NoSuchMethodException e) {
-            throw new RuntimeException(e);
-        }
 
         addEventListener(COMPILE_BUTTON, "click", e -> compileCallback());
         addEventListener(INPUT, "keydown", e -> {
@@ -67,9 +59,6 @@ private static void compileCallback() {
         });
     }
 
-    @JS("")
-    private static native void sink(Object o);
-
     /**
      * Runs the given {@link Runnable} in {@code setTimeout} without delay.
      * <p>