Removed outdated bootstrapping info from install.txt

install.txt

@@ -62,46 +62,3 @@ Currently, the following C compilers are supported under Windows:
   | http://www.digitalmars.com/download/freecompiler.html
 
 However, most testing is done with GCC.
-
-
-
-Bootstrapping from github
--------------------------
-
-To get the source code you need either of these:
-
-* A working web browser + tar(or equivalent):
-  https://github.com/Araq/Nimrod/tarball/master
-* wget + tar:
-  ``wget --no-check-certificate "https://github.com/Araq/Nimrod/tarball/master"``
-* git: ``git clone git://github.com/Araq/Nimrod.git``
-
-After downloading the source (and extracting it), you need to 
-extract ``build/csources.zip``:
-
-* ``cd build``
-* ``unzip csources.zip``
-* ``cd ..``
-
-and then you can bootstrap with:
-
-On Windows
-~~~~~~~~~~
-
-* ``build.bat``
-* ``bin\nimrod c koch``
-* ``koch boot -d:release``
-
-If you want a 64 bit build, make sure that you have a GCC built for Win64 and
-execute ``build64.bat`` instead of ``build.bat``.
-
-
-On UNIX
-~~~~~~~
-
-* ``./build.sh``
-* ``bin/nimrod c koch``
-* ``./koch boot -d:release``
-
-Installation on UNIX can then be done with ``koch install [dir]``.
-