Remove unnecessary setenv() replacement function

- setenv() and unsetenv() are required by POSIX 2001, we dont care about
  older systems

1 files changed, 0 insertions, 5 deletions

diff --git a/system.h b/system.h
index bb40b8d21..142d8a454 100644
--- a/system.h
+++ b/system.h
@@ -267,11 +267,6 @@ extern const char *__progname;
 #include <strings.h>
 #endif
 
-#if ! HAVE_SETENV
-extern int setenv(const char *name, const char *value, int replace);
-extern void unsetenv(const char *name);
-#endif
-
 #if HAVE_POLL_H
 #include <poll.h>
 #else