Revert "x86 and x86_64: Update binutils package."

This reverts commit 4a4e2dae77e28f70a2decf27c24ec182b360c6d5.

It broke the build with:
Resolving package dependencies ...
Encountered problems:
problem 1: nothing provides cmd:as>=2.23.2_2013_04_09 needed by
gcc-4.8.2_2014_01_28-2
  solution 1:
    - allow deinstallation of gcc-4.8.2_2014_01_28-2

Instead, the fixed binutils package should be used. Reverting this now
as otherwise it's not even possible to build a system to build a fixed
package.