bug symfony#22715 [FrameworkBundle] remove Security deps from the require section (xabbuh)

This PR was merged into the 3.2 branch.

Discussion
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[FrameworkBundle] remove Security deps from the require section

| Q             | A
| ------------- | ---
| Branch?       | 3.2
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

These requirements have been moved in symfony#20075 before and are still
present in the `require-dev` section.

see symfony/flex#14

Commits
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c690256 remove Security deps from the require section

Author: fabpot

src/Symfony/Bundle/FrameworkBundle/composer.json

@@ -29,8 +29,6 @@
         "symfony/filesystem": "~2.8|~3.0",
         "symfony/finder": "~2.8|~3.0",
         "symfony/routing": "~3.1.10|^3.2.3",
-        "symfony/security-core": "~2.8|~3.0",
-        "symfony/security-csrf": "~2.8|~3.0",
         "symfony/stopwatch": "~2.8|~3.0",
         "doctrine/cache": "~1.0"
     },