cmake: remove LAMMPS_LINK_LIBS

cmake/Modules/Packages/KIM.cmake

@@ -2,8 +2,7 @@ if(PKG_KIM)
   set(KIM-API_MIN_VERSION 2.1)
   find_package(CURL)
   if(CURL_FOUND)
-    include_directories(${CURL_INCLUDE_DIRS})
-    list(APPEND LAMMPS_LINK_LIBS ${CURL_LIBRARIES})
+    target_link_libraries(lammps PRIVATE CURL::libcurl) 
     add_definitions(-DLMP_KIM_CURL)
     set(LMP_DEBUG_CURL OFF CACHE STRING "Set libcurl verbose mode on/off. If on, it displays a lot of verbose information about its operations.")
     mark_as_advanced(LMP_DEBUG_CURL)
@@ -62,6 +61,6 @@ if(PKG_KIM)
   else()
     find_package(KIM-API ${KIM-API_MIN_VERSION} REQUIRED)
   endif()
-  list(APPEND LAMMPS_LINK_LIBS "${KIM-API_LDFLAGS}")
+  target_link_libraries(lammps PRIVATE "${KIM-API_LDFLAGS}")
   include_directories(${KIM-API_INCLUDE_DIRS})
 endif()