Revert "Trying out a patch for IRIX 11"

This reverts commit d190c5d25865a7414eea4fe6409a94842fba220e.

gl/wchar.in.h

@@ -46,7 +46,6 @@
 /* Normal invocation convention.  */
 
 #ifndef _GL_WCHAR_H
-#define _GL_WCHAR_H
 
 /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
    <wchar.h>.
@@ -63,6 +62,9 @@
 # @INCLUDE_NEXT@ @NEXT_WCHAR_H@
 #endif
 
+#ifndef _GL_WCHAR_H
+#define _GL_WCHAR_H
+
 /* The definition of GL_LINK_WARNING is copied here.  */
 
 #ifdef __cplusplus
@@ -292,5 +294,6 @@ extern int wcwidth (int /* actually wchar_t */);
 }
 #endif
 
+#endif /* _GL_WCHAR_H */
 #endif /* _GL_WCHAR_H */
 #endif