remove platform preprocess check in platform_spec.cpp

source/detail/linux_X11/platform_spec.cpp

@@ -14,8 +14,6 @@
  *	http://standards.freedesktop.org/clipboards-spec/clipboards-0.1.txt
  */
 
-#if defined(NANA_LINUX) || defined(NANA_MACOS)
-
 #include <nana/detail/platform_spec_selector.hpp>
 #include <X11/Xlocale.h>
 #include <locale>
@@ -1414,7 +1412,3 @@ namespace detail
 	}
 }//end namespace detail
 }//end namespace nana
-
-
-//#if defined(NANA_LINUX) || defined(NANA_MACOS)
-#endif

source/detail/win32/platform_spec.cpp

@@ -12,8 +12,6 @@
  *	This file provides basis class and data structrue that required by nana
  */
 
-#if defined(NANA_WINDOWS)
-
 #include <nana/detail/platform_spec_selector.hpp>
 #include <shellapi.h>
 #include <stdexcept>
@@ -292,6 +290,3 @@ namespace detail
 	}
 }//end namespace detail
 }//end namespace nana
-
-//#if defined(NANA_WINDOWS)
-#endif