Revert "Apply strict SELinux checking of PROT_EXEC on mmap/mprotect calls."

This reverts commit 0ad86b4ec9818a2665d06d97039702bc266ca386.
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_system_core into kitkat
Merge pull request #1 from AOSPA-legacy/kitkat

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