adjust to symfony default ruleset

Author: dbu

.styleci.yml

@@ -7,7 +7,7 @@
 ############################################################################
 # This file is part of the Symfony CMF package.                            #
 #                                                                          #
-# (c) 2011-2017 Symfony CMF                                                #
+# (c) Symfony CMF i                                                        #
 #                                                                          #
 # For the full copyright and license information, please view the LICENSE  #
 # file that was distributed with this source code.                         #
@@ -16,10 +16,10 @@
 
 preset: symfony
 
+risky: true
+
 enabled:
   - combine_consecutive_unsets
-  - short_array_syntax
-  - newline_after_open_tag
   - no_php4_constructor
   - no_useless_else
   - ordered_use