remove unnecessary units

mayland-blocks/block-templates/single.html

@@ -10,7 +10,7 @@
 
 <!-- wp:template-part {"slug":"post-meta"} /-->
 
-<!-- wp:spacer {"height":16px} -->
+<!-- wp:spacer {"height":16} -->
 <div style="height:16px" aria-hidden="true" class="wp-block-spacer"></div>
 <!-- /wp:spacer -->
 
@@ -22,7 +22,7 @@
 <!-- wp:group {"layout":{"inherit":true}} -->
 <div class="wp-block-group">
 
-<!-- wp:spacer {"height":16px} -->
+<!-- wp:spacer {"height":16} -->
 <div style="height:16px" aria-hidden="true" class="wp-block-spacer"></div>
 <!-- /wp:spacer -->