Remove wrong library path that is reported by icu-config.

icu-config reports the path to icu resources on the host
so we need to remove this path again, when compiling for
an embedded target.

Change-Id: Ifaf1c07ad3d0a8794a109b253764834ea3ff6ddc
Reviewed-by: Andras Becsi <andras.becsi@digia.com>