Revert "Merge pull request #567 from MarcWeber/submit/cmake-improvement"

This reverts commit abc7591aaf, reversing changes
made to 6b1ebeccf2, because they broke half the
packages in stdenv-updates: http://hydra.nixos.org/eval/927013 has further
details.

pkgs/development/tools/build-managers/cmake/setup-hook.sh

@@ -56,20 +56,3 @@ if [ -n "$crossConfig" ]; then
 else
     envHooks+=(addCMakeParams)
 fi
-
-make_cmake_find_libs(){
-  for flag in $NIX_CFLAGS_COMPILE $NIX_LDFLAGS; do
-    case $flag in
-      -I*)
-        export CMAKE_INCLUDE_PATH="$CMAKE_INCLUDE_PATH${CMAKE_INCLUDE_PATH:+:}${flag:2}"
-        ;;
-      -L*)
-        export CMAKE_LIBRARY_PATH="$CMAKE_LIBRARY_PATH${CMAKE_LIBRARY_PATH:+:}${flag:2}"
-        ;;
-    esac
-  done
-}
-
-# not using setupHook, because it could be a setupHook adding additional
-# include flags to NIX_CFLAGS_COMPILE
-postHooks+=(make_cmake_find_libs)