GHS: Do not include WindowsPaths

This causes issues where CMAKE_SYSTEM_PREFIX_PATH contains incorrect
paths. GHS is a cross-compiler toolchain and doesn't use anything in
these locations.

Also WindowsPaths are always wrong on Linux hosts.

Modules/Platform/GHS-MULTI.cmake

@@ -13,5 +13,3 @@ set(GHSMULTI 1)
 
 set(CMAKE_FIND_LIBRARY_PREFIXES "")
 set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
-
-include(Platform/WindowsPaths)