CKE 3.x and 4.x - Undefined table width gets reset to default

[Jakub Ś]

This is the continuation of #9478.

To reproduce:

1. Clear editor contents with CRTL+A Backspace
2. Insert default table
3. Open table properties dialog, clear width value and click OK
4. Open table properties one more time.

Result: Default table width 500px is present in width field and once you click OK table gets default width.

You have to use below code to see the bug

CKEDITOR.on( 'dialogDefinition', function( ev )
            {
                var dialogName = ev.data.name;
                var dialogDefinition = ev.data.definition;

                // Set default table width during creation.
                if(dialogName == 'table')
                {
                    var infoTab = dialogDefinition.getContents( 'info' );
                    txtWidth = infoTab.get( 'txtWidth' );
                    txtWidth['default'] = '100%';
                }

                if ( dialogName == 'tableProperties' )
                {
                    var infoTab = dialogDefinition.getContents( 'info' );

                    var tab = dialogDefinition.getContents( 'advanced' );
                    tab.remove ('advLangDir');
                    tab.remove ('advStyles');
                    tab.remove ('advCSSClasses');
                }
            });

window.x  = CKEDITOR.editor.replace('editor1', {
    removePlugins : 'button,div,filebrowser,flash,format,forms,horizontalrule,indent,justify,liststyle,pagebreak,showborders,stylescombo,templates',
        toolbar :
            [
                ['Source', 'Table']
            ],
});