minor #2860 Remove PHP 5.4 code (fabpot)
minor #2860 Remove PHP 5.4 code (fabpot)

This PR was merged into the 1.x branch.

Discussion
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Remove PHP 5.4 code

Commits
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1808776d removed PHP 5.4 code

twigphp/Twig,nicolas-grekas/Twig,twigphp/Twig,nicolas-grekas/Twig,nicolas-grekas/Twig,twigphp/Twig,nicolas-grekas/Twig,nicolas-grekas/Twig