Revert "Add support for KDE4 build."

This reverts commit 18a925a8e0740b5972dfd8d86b78250b9d95b5d2.

Make current source close to 1.6.2
Revert "Make configure can work with kde4-config"

This reverts commit f357bc93f295a420e4f94304f66081482f4bf49f.

Make current source close to 1.6.2
Make kscope can be built with new fedora.