remove region references from timezones package

Author: danharrin

packages/timezones-en/composer.json

@@ -30,7 +30,7 @@
     "extra": {
         "laravel": {
             "providers": [
-                "Squire\\RegionsEnServiceProvider"
+                "Squire\\TimezonesEnServiceProvider"
             ]
         }
     },

packages/timezones/resources/lang/en/validation.php

@@ -2,6 +2,6 @@
 
 return [
 
-    'region' => 'The selected :attribute is an invalid timezone.',
+    'timezone' => 'The selected :attribute is an invalid timezone.',
 
 ];