Remove bspatch from linux build targets.

build/SConscript.main

Index: build/SConscript.main
===================================================================
--- build/SConscript.main	(revision 1846)
+++ build/SConscript.main	(working copy)
@@ -460,7 +460,6 @@
 if LoadComponent('third_party'):
   sconscripts.extend([
       '$BSDIFF_DIR/SConscript',
-      '$BSPATCH_DIR/SConscript',

[sgk, 2008/09/08 18:38:57]

Unconditionally removing $BSPATCH_DIR/SConscript from this list will break the
SCons build on Windows, which still needs bspatch for its build of setup.  It
needs to be added to the list only if env['PLATFORM'] not in ('darwin',
'posix'), since I presume bspatch also doesn't build on Mac yet...?  (The Mac
build is getting SCons-ified this week.)

       '$BZIP2_DIR/SConscript',
       '$ICU38_DIR/SConscript',
       '$LIBJPEG_DIR/SConscript',