diff --git a/src/wp-includes/blocks/comments-query-loop/block.json b/src/wp-includes/blocks/comments-query-loop/block.json
deleted file mode 100644
index fecbd7c92f6bb..0000000000000
--- a/src/wp-includes/blocks/comments-query-loop/block.json
+++ /dev/null
@@ -1,29 +0,0 @@
-{
-	"$schema": "https://schemas.wp.org/trunk/block.json",
-	"apiVersion": 2,
-	"name": "core/comments-query-loop",
-	"title": "Comments Query Loop",
-	"category": "theme",
-	"description": "An advanced block that allows displaying post comments using different visual configurations.",
-	"textdomain": "default",
-	"attributes": {
-		"tagName": {
-			"type": "string",
-			"default": "div"
-		}
-	},
-	"supports": {
-		"align": [ "wide", "full" ],
-		"html": false,
-		"color": {
-			"gradients": true,
-			"link": true,
-			"__experimentalDefaultControls": {
-				"background": true,
-				"text": true,
-				"link": true
-			}
-		}
-	},
-	"editorStyle": "wp-block-comments-editor"
-}
diff --git a/src/wp-includes/blocks/post-comments.php b/src/wp-includes/blocks/post-comments.php
deleted file mode 100644
index 8ddb0e6f74565..0000000000000
--- a/src/wp-includes/blocks/post-comments.php
+++ /dev/null
@@ -1,85 +0,0 @@
-<?php
-/**
- * Server-side rendering of the `core/post-comments` block.
- *
- * @package WordPress
- */
-
-/**
- * Renders the `core/post-comments` block on the server.
- *
- * @param array    $attributes Block attributes.
- * @param string   $content    Block default content.
- * @param WP_Block $block      Block instance.
- * @return string Returns the filtered post comments for the current post wrapped inside "p" tags.
- */
-function render_block_core_post_comments( $attributes, $content, $block ) {
-	global $post;
-
-	$post_id = $block->context['postId'];
-	if ( ! isset( $post_id ) ) {
-		return '';
-	}
-
-	$comment_args = array(
-		'post_id' => $post_id,
-		'count'   => true,
-	);
-	// Return early if there are no comments and comments are closed.
-	if ( ! comments_open( $post_id ) && get_comments( $comment_args ) === 0 ) {
-		return '';
-	}
-
-	$post_before = $post;
-	$post        = get_post( $post_id );
-	setup_postdata( $post );
-
-	ob_start();
-	// There's a deprecation warning generated by WP Core.
-	// Ideally this deprecation is removed from Core.
-	// In the meantime, this removes it from the output.
-	add_filter( 'deprecated_file_trigger_error', '__return_false' );
-	comments_template();
-	remove_filter( 'deprecated_file_trigger_error', '__return_false' );
-	$post = $post_before;
-
-	$classes = '';
-	if ( isset( $attributes['textAlign'] ) ) {
-		$classes .= 'has-text-align-' . $attributes['textAlign'];
-	}
-
-	$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classes ) );
-	$output             = ob_get_clean();
-
-	return sprintf( '<div %1$s>%2$s</div>', $wrapper_attributes, $output );
-}
-
-/**
- * Registers the `core/post-comments` block on the server.
- */
-function register_block_core_post_comments() {
-	register_block_type_from_metadata(
-		__DIR__ . '/post-comments',
-		array(
-			'render_callback' => 'render_block_core_post_comments',
-		)
-	);
-}
-add_action( 'init', 'register_block_core_post_comments' );
-
-/**
- * Use the button block classes for the form-submit button.
- *
- * @param array $fields The default comment form arguments.
- *
- * @return array Returns the modified fields.
- */
-function post_comments_block_form_defaults( $fields ) {
-	if ( wp_is_block_theme() ) {
-		$fields['submit_button'] = '<input name="%1$s" type="submit" id="%2$s" class="%3$s wp-block-button__link" value="%4$s" />';
-		$fields['submit_field']  = '<p class="form-submit wp-block-button">%1$s %2$s</p>';
-	}
-
-	return $fields;
-}
-add_filter( 'comment_form_defaults', 'post_comments_block_form_defaults' );
diff --git a/src/wp-includes/blocks/post-comments/block.json b/src/wp-includes/blocks/post-comments/block.json
deleted file mode 100644
index 6c5c4e16b8f74..0000000000000
--- a/src/wp-includes/blocks/post-comments/block.json
+++ /dev/null
@@ -1,45 +0,0 @@
-{
-	"$schema": "https://schemas.wp.org/trunk/block.json",
-	"apiVersion": 2,
-	"name": "core/post-comments",
-	"title": "Post Comments (deprecated)",
-	"category": "theme",
-	"description": "This block is deprecated. Please use the Comments Query Loop block instead.",
-	"textdomain": "default",
-	"attributes": {
-		"textAlign": {
-			"type": "string"
-		}
-	},
-	"usesContext": [ "postId", "postType" ],
-	"supports": {
-		"html": false,
-		"align": [ "wide", "full" ],
-		"typography": {
-			"fontSize": true,
-			"lineHeight": true,
-			"__experimentalFontStyle": true,
-			"__experimentalFontWeight": true,
-			"__experimentalLetterSpacing": true,
-			"__experimentalTextTransform": true,
-			"__experimentalDefaultControls": {
-				"fontSize": true
-			}
-		},
-		"color": {
-			"gradients": true,
-			"link": true,
-			"__experimentalDefaultControls": {
-				"background": true,
-				"text": true
-			}
-		},
-		"inserter": false
-	},
-	"style": [
-		"wp-block-post-comments",
-		"wp-block-buttons",
-		"wp-block-button"
-	],
-	"editorStyle": "wp-block-post-comments-editor"
-}