Docs: Remove @access notations from method DocBlocks in wp-includes/* classes.

Prior to about 2013, many class methods lacked even access modifiers which made the `@access` notations that much more useful. Now that we've gotten to a point where the codebase is more mature from a maintenance perspective and we can finally remove these notations. Notable exceptions to this change include standalone functions notated as private as well as some classes still considered to represent "private" APIs.

See #41452.

Built from https://develop.svn.wordpress.org/trunk@41162


git-svn-id: http://core.svn.wordpress.org/trunk@41002 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-walker-page-dropdown.php

@@ -20,7 +20,6 @@ class Walker_PageDropdown extends Walker {
 	 * What the class handles.
 	 *
 	 * @since 2.1.0
-	 * @access public
 	 * @var string
 	 *
 	 * @see Walker::$tree_type
@@ -31,7 +30,6 @@ class Walker_PageDropdown extends Walker {
 	 * Database fields to use.
 	 *
 	 * @since 2.1.0
-	 * @access public
 	 * @var array
 	 *
 	 * @see Walker::$db_fields
@@ -43,7 +41,6 @@ class Walker_PageDropdown extends Walker {
 	 * Starts the element output.
 	 *
 	 * @since 2.1.0
-	 * @access public
 	 *
 	 * @see Walker::start_el()
 	 *