Remove section about dates

Author: duncanmcclean

docs/blueprints.md

@@ -116,43 +116,6 @@ protected function casts(): array
 }
 ```
 
-## Dates
-
-As of Statamic 6, dates are stored in UTC, rather than your application's timezone. 
-
-While we recommend [using `UTC` as your application timezone](https://laravel.com/docs/master/eloquent-mutators#date-casting-and-timezones), if that's not possible, you should add accessors to your Eloquent models so Runway is always dealing with UTC Carbon instances.
-
-```php
-// app/Models/Post.php
-
-public function casts()
-{
-    return [
-        'publish_date' => 'datetime', // [tl! remove]
-    ];
-}
-
-public function date(): Attribute
-{
-    return Attribute::make(
-        get: function ($value) {
-            return Carbon::parse($value, 'UTC');
-        },
-        set: function ($value) {
-            if (! $value instanceof Carbon) {
-                $value = Carbon::parse($value, 'UTC');
-            }
-
-            if ($value->tzName !== 'UTC') {
-                $value = $value->utc();
-            }
-
-            return $value->format('Y-m-d H:i:s');
-        },
-    );
-}
-```
-
 ## Computed Fields
 
 Like Statamic Core, Runway supports the concept of Computed Fields. However, instead of the computed values being part of a callback in your `AppServiceProvider`, they're accessors on your Eloquent model.