Revert "mcrypt 2.6.8: Fix for Linuxbrew"
Revert "mcrypt 2.6.8: Fix for Linuxbrew"

This reverts commit 794d8052fca6e65142c4cfafec33728e4f72573e.
This fix is no longer necessary. It's been moved to core.

LinuxbrewTestBot/homebrew-core,Linuxbrew/homebrew-core,rwhogg/homebrew-core,forevergenin/homebrew-core,maxim-belkin/homebrew-core,maxim-belkin/homebrew-core,rwhogg/homebrew-core,forevergenin/homebrew-core,LinuxbrewTestBot/homebrew-core,Linuxbrew/homebrew-core