Revert "lib/string: use glibc version"

This reverts commit 81bcd5742149e274ccd97a44683f61052a7c50b3.
LIB: Revert all commits to LIB folder and friends.

I had SOD playing music, and BT audio stream is broken,
cant stream to my car stereo.

need to test if ok after revert.

Lib folder is sensitive, it's connected every where, so updating
only 3 files inside will bring instability to all system.

best not mess with this folder, or update all connected to it.
and it's will be A LOT!
Revert "+ "Add frandom(/dev/frandom) -Fast kernel number generator Link: http://billauer.co.il/frandom.html" - https://github.com/halaszk/siyahkernel-sgs3/commit/c6b4550a7949e844aba153b812af5d29b5589622"

This reverts commit 9879a472f7b67c5a554a7e46b3c7dec201330c2d.
Revert "Ported all samples/ + scripts/ from 3.8.RC6 + android stuff restore."

This reverts commit 5308ce64a43600068b25927e174ca6b79bc465f8.
Revert "Full update to scripts/checkpatch.pl from 3.8.rc6 kernel."

This reverts commit 3ddc6f15cfca936d212ec38c73554e5d6beaf5d8.
Fixed dirty_writeback_centisecs 0 on boot! and till screen off!

now = 500
and tuned sync at screen on / off to prevent data loose
SET ZEN back as default I/O gov.