Remove trailing whitespaces

Closes gh-1100

src/asciidoc/core-beans.adoc

@@ -5784,7 +5784,7 @@ other beans through a `Provider.get()` call. As a variant of the example above:
 	public class SimpleMovieLister {
 
 		private Provider<MovieFinder> movieFinder;
-		
+
 		@Inject
 		public void setMovieFinder(Provider<MovieFinder> movieFinder) {
 			this.movieFinder = movieFinder;