Remove jQuery plugin (still allow passing a jQuery element to init, b…

…ut don't allow `$('#cy-div').cytoscape(...)` syntax) #1539

src/index.js

@@ -6,7 +6,6 @@ var window = require( './window' );
 var is = require( './is' );
 var Core = require( './core' );
 var extension = require( './extension' );
-var registerJquery = require( './jquery-plugin' );
 var Stylesheet = require( './stylesheet' );
 var Thread = require( './thread' );
 var Fabric = require( './fabric' );
@@ -31,16 +30,6 @@ var cytoscape = function( options ){ // jshint ignore:line
 // replaced by build system
 cytoscape.version = require('./version.json');
 
-// try to register w/ jquery
-if( window && window.jQuery ){
-  registerJquery( window.jQuery, cytoscape );
-}
-
-// expose register api
-cytoscape.registerJquery = function( jQuery ){
-  registerJquery( jQuery, cytoscape );
-};
-
 // expose public apis (mostly for extensions)
 cytoscape.stylesheet = cytoscape.Stylesheet = Stylesheet;
 cytoscape.thread = cytoscape.Thread = Thread;