minor #4168 DX: FopenFlagsFixer - remove useless proxy method (SpacePossum)
minor #4168 DX: FopenFlagsFixer - remove useless proxy method (SpacePossum)

This PR was merged into the 2.13 branch.

Discussion
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DX: FopenFlagsFixer - remove useless proxy method

not on 2.12, fixed on 3.0 already

Commits
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c2bbc3c8 FopenFlagsFixer - remove useless proxy method

GrahamCampbell/PHP-CS-Fixer,Slamdunk/PHP-CS-Fixer,gharlan/PHP-CS-Fixer,Slamdunk/PHP-CS-Fixer,kubawerlos/PHP-CS-Fixer,kubawerlos/PHP-CS-Fixer,keradus/PHP-CS-Fixer,GrahamCampbell/PHP-CS-Fixer,gharlan/PHP-CS-Fixer,SpacePossum/PHP-CS-Fixer,SpacePossum/PHP-CS-Fixer,keradus/PHP-CS-Fixer,FriendsOfPHP/PHP-CS-Fixer,FriendsOfPHP/PHP-CS-Fixer