Data: Don't expose jQuery.acceptData

jQuery.acceptData is an undocumented internal API that shouldn't be exposed.

Fixes gh-2555

src/data/Data.js

@@ -1,15 +1,14 @@
 define( [
 	"../core",
 	"../var/rnotwhite",
-	"./accepts"
-], function( jQuery, rnotwhite ) {
+	"./var/acceptData"
+], function( jQuery, rnotwhite, acceptData ) {
 
 function Data() {
 	this.expando = jQuery.expando + Data.uid++;
 }
 
 Data.uid = 1;
-Data.accepts = jQuery.acceptData;
 
 Data.prototype = {
 
@@ -38,7 +37,7 @@ Data.prototype = {
 		// We can accept data for non-element nodes in modern browsers,
 		// but we should not, see #8335.
 		// Always return an empty object.
-		if ( !Data.accepts( owner ) ) {
+		if ( !acceptData( owner ) ) {
 			return {};
 		}
 

src/data/var/acceptData.js

@@ -1,12 +1,9 @@
-define( [
-	"../core"
-], function( jQuery ) {
+define( function() {
 
 /**
  * Determines whether an object can have data
  */
-jQuery.acceptData = function( owner ) {
-
+return function( owner ) {
 	// Accepts only:
 	//  - Node
 	//    - Node.ELEMENT_NODE
@@ -17,5 +14,4 @@ jQuery.acceptData = function( owner ) {
 	return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
 };
 
-return jQuery.acceptData;
 } );