feature #16715 [Form] Remove choices_as_values option on ChoiceType (nicolas-grekas)

This PR was merged into the 3.0-dev branch.

Discussion
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[Form] Remove choices_as_values option on ChoiceType

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Commits
-------

ed0e26a [Form] Remove choices_as_values option on ChoiceType

Author: fabpot

Form/Type/DoctrineType.php

@@ -259,7 +259,6 @@ public function configureOptions(OptionsResolver $resolver)
             'em' => null,
             'query_builder' => null,
             'choices' => null,
-            'choices_as_values' => true,
             'choice_loader' => $choiceLoader,
             'choice_label' => array(__CLASS__, 'createChoiceLabel'),
             'choice_name' => $choiceName,

composer.json

@@ -22,7 +22,7 @@
     "require-dev": {
         "symfony/stopwatch": "~2.8|~3.0",
         "symfony/dependency-injection": "~2.8|~3.0",
-        "symfony/form": "~2.8|~3.0",
+        "symfony/form": "~3.0,>3.0-BETA1",
         "symfony/http-kernel": "~2.8|~3.0",
         "symfony/property-access": "~2.8|~3.0",
         "symfony/property-info": "~2.8|3.0",