uClibc: 0.9.33.2: revert pread/pwrite patches from upstream git

uClibc: 0.9.33.2: revert pread/pwrite patches from upstream git

The pread/pwrite handling on the 0.9.33 branch doesn't take into
consideration architectures with an ABI requiring natural alignment for
64bit arguments (afaik ARM EABI, MIPS O32, PPC, SH and Xtensa), causing
havoc.

The issue has been brought with the uClibc developers, but so far a fix is
not available - So lets revert the patches for now as they cause real
issues.

For further details, see:

http://lists.busybox.net/pipermail/buildroot/2014-January/087050.html

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>