I18N: Remove redundant default text domain parameter in some __() calls.

Follow-up to [43919], [44262], [48141], [50259].

See #52627.
Built from https://develop.svn.wordpress.org/trunk@51160


git-svn-id: http://core.svn.wordpress.org/trunk@50769 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/blocks.php

@@ -88,7 +88,7 @@ function register_block_script_handle( $metadata, $field_name ) {
 			__FUNCTION__,
 			sprintf(
 				/* translators: 1: Field name, 2: Block name. */
-				__( 'The asset file for the "%1$s" defined in "%2$s" block definition is missing.', 'default' ),
+				__( 'The asset file for the "%1$s" defined in "%2$s" block definition is missing.' ),
 				$field_name,
 				$metadata['name']
 			),