Revert "Create compute offering UI: Use big size for form"

Due to some usability issues with the form layout, reverting the
'bigSize' functionality from the createForm.

ui/css/cloudstack3.css

@@ -3809,10 +3809,6 @@ Dialogs*/
   margin: 0 0 12px;
 }
 
-.ui-dialog.big div.form-container div.form-item {
-  width: 45%;
-}
-
 .ui-dialog div.form-container div.name {
   float: left;
   clear: both;

ui/scripts/configuration.js

@@ -61,7 +61,6 @@
                             },
 
                             createForm: {
-                                bigSize: true,
                                 title: 'label.add.compute.offering',
                                 fields: {
                                     name: {

ui/scripts/ui/dialog.js

@@ -67,10 +67,10 @@
                 $('.overlay').remove();
 
                 return $formContainer.dialog({
-                    dialogClass: args.form.bigSize ? 'create-form big' : 'create-form',
+                    dialogClass: 'create-form',
                     closeOnEscape: false,
                     draggable: false,
-                    width: args.form.bigSize ? 800 : 400,
+                    width: 400,
                     title: _l(args.form.title),
                     open: function() {
                         if (args.form.preFilter) {