Index: src/wp-content/themes/twentynineteen/inc/template-tags.php
===================================================================
--- src/wp-content/themes/twentynineteen/inc/template-tags.php	(revision 52033)
+++ src/wp-content/themes/twentynineteen/inc/template-tags.php	(working copy)
@@ -208,7 +208,6 @@
 
 			comment_form(
 				array(
-					'logged_in_as' => null,
 					'title_reply'  => null,
 				)
 			);
Index: src/wp-content/themes/twentytwentyone/comments.php
===================================================================
--- src/wp-content/themes/twentytwentyone/comments.php	(revision 52033)
+++ src/wp-content/themes/twentytwentyone/comments.php	(working copy)
@@ -82,7 +82,6 @@
 	<?php
 	comment_form(
 		array(
-			'logged_in_as'       => null,
 			'title_reply'        => esc_html__( 'Leave a comment', 'twentytwentyone' ),
 			'title_reply_before' => '<h2 id="reply-title" class="comment-reply-title">',
 			'title_reply_after'  => '</h2>',