checkbox should always be disabled (#2)

### TL;DR

This change removes unused properties from a checkbox component in the `org-slug/projects/create/template` file.

### What changed?

The `value` and `onChange` properties were deleted from the checkbox that determines whether a repo is private or not. It's important to note that this checkbox is currently disabled.

### How to test?

Try to create a new project and check that there aren't any errors or behavior changes when dealing with the 'Make this repo private' checkbox.

### Why make this change?

This change enhances code readability and ensures we're not keeping unnecessary code. It does not affect functionality as the checkbox is currently disabled.

packages/frontend/src/pages/org-slug/projects/create/template/index.tsx

@@ -189,11 +189,9 @@ const CreateRepo = () => {
           <Controller
             name="isPrivate"
             control={control}
-            render={({ field: { value, onChange } }) => (
+            render={({ }) => (
               <Checkbox
                 label="Make this repo private"
-                checked={value}
-                onCheckedChange={onChange}
                 disabled={true}
               />
             )}