TinyMCE: after discussion in Slack https://wordpress.slack.com/archives/core/p1458164584000700

- Remove `***` and `___` text pattern and support for spaces in `---`. The only `<hr>` text pattern is 3 or more dashes, no spaces.
- Remove the `*`, `**`, `_`, and `__` text patterns for bold and italic.

Fixes #33300;

git-svn-id: https://develop.svn.wordpress.org/trunk@37023 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/js/tinymce/plugins/wordpress/plugin.js

@@ -291,15 +291,6 @@ tinymce.PluginManager.add( 'wordpress', function( editor ) {
 					tr({ '#####': 'Heading 5' }) +
 					tr({ '######': 'Heading 6' }) +
 					tr({ '---': 'Horizontal line' }) +
-					tr({ '***': 'Horizontal line' }) +
-				'</table>';
-
-			html = html +
-				'<h2>' + __( 'The next group of formatting shortcuts are applied as you type or when you insert them around plain text in the same paragraph. Press Escape or the Undo button to undo.' ) + '</h2>' +
-				'<table class="wp-help-th-center fixed">' +
-					tr({ '*': 'Italic', '**': 'Bold' }) +
-					tr({ '_': 'Italic', '__': 'Bold' }) +
-					tr({ '`': 'Code', empty: '' }) +
 				'</table>';
 		}
 

src/wp-includes/js/tinymce/plugins/wptextpattern/plugin.js

@@ -30,14 +30,10 @@
 			{ start: '#####', format: 'h5' },
 			{ start: '######', format: 'h6' },
 			{ start: '>', format: 'blockquote' },
-			{ regExp: /^\s*(?:(?:\* ?){3,}|(?:_ ?){3,}|(?:- ?){3,})\s*$/, element: 'hr' }
+			{ regExp: /^(-){3,}$/, element: 'hr' }
 		];
 
 		var inlinePatterns = [
-			{ start: '*', end: '*', format: 'italic' },
-			{ start: '**', end: '**', format: 'bold' },
-			{ start: '_', end: '_', format: 'italic' },
-			{ start: '__', end: '__', format: 'bold' },
 			{ start: '`', end: '`', format: 'code' }
 		];