[kcms/font] Simplify CMake code

kcms/CMakeLists.txt

@@ -15,8 +15,6 @@ if(X11_Xcursor_FOUND)
     add_subdirectory(cursortheme)
 endif()
 
-set(libkxftconfig_SRCS ${CMAKE_CURRENT_SOURCE_DIR}/fonts/kxftconfig.cpp )
-
 if(FONTCONFIG_FOUND)
     add_subdirectory( kfontinst )
     add_subdirectory( fonts )

kcms/fonts/CMakeLists.txt

@@ -3,21 +3,16 @@ add_definitions(-DTRANSLATION_DOMAIN=\"kcm_fonts\")
 
 ########### next target ###############
 
-include_directories(../kfontinst/lib)
-
 set(kcm_fonts_PART_SRCS
     previewrenderengine.cpp
     previewimageprovider.cpp
     fonts.cpp
     fontsaasettings.cpp
+    kxftconfig.cpp
     ../kfontinst/lib/FcEngine.cpp
     ../kcms-common_p.h
 )
 
-if(X11_FOUND)
-    set(kcm_fonts_PART_SRCS ${kcm_fonts_PART_SRCS} ${libkxftconfig_SRCS})
-endif()
-
 kcmutils_generate_module_data(
     kcm_fonts_PART_SRCS
     MODULE_DATA_HEADER fontsdata.h