Remove redundant extensions

src/main/java/com/keenwrite/adapters/DocumentAdapter.java


		/**
		- * Allows subclasses to implement specific events.
		+ * Allows subclasses to implement only specific events of interest.
		*/
		public class DocumentAdapter implements DocumentListener {

src/main/java/com/keenwrite/adapters/ReplacedElementAdapter.java

		import org.xhtmlrenderer.simple.extend.FormSubmissionListener;

		+/**
		+ * Allows subclasses to implement only specific events of interest.
		+ */
		public abstract class ReplacedElementAdapter implements ReplacedElementFactory {
		@Override

src/main/java/com/keenwrite/processors/markdown/MarkdownProcessor.java


		import java.nio.file.Path;
		-import java.util.ArrayList;
		import java.util.Collection;
		+import java.util.HashSet;

		import static com.keenwrite.Constants.USER_DIRECTORY;

		final Processor<String> successor, final ProcessorContext context ) {
		final var extensions = createExtensions( context );
		-
		- // Allows referencing image files via relative paths and dynamic file types.
		- extensions.add( ImageLinkExtension.create( context.getPath() ) );
		- extensions.add( BlockExtension.create() );
		- extensions.add( TeXExtension.create( context.getExportFormat() ) );
		-
		return new MarkdownProcessor( successor, extensions );
		}

		*/
		private static Collection<Extension> createDefaultExtensions() {
		- final var extensions = new ArrayList<Extension>();
		+ final var extensions = new HashSet<Extension>();
		extensions.add( DefinitionExtension.create() );
		extensions.add( StrikethroughSubscriptExtension.create() );

Delta	6 lines added, 9 lines removed, 3-line decrease