Revert "hijack SIGCHLD handler for internal use"

This reverts commit 054a412d540e7ed2de63d68da753f585ea6616c3.
SIGCHLD `waidpid`, `waitpid_lock` and related code, have been removed
at ruby/ruby#7527.

1 files changed, 0 insertions, 18 deletions

diff --git a/signal.c b/signal.c
index 48b0d4488e..1c8f8c112b 100644
--- a/signal.c
+++ b/signal.c
@@ -1548,21 +1548,3 @@ Init_signal(void)
 
     rb_enable_interrupt();
 }
-
-#if defined(HAVE_GRANTPT)
-extern int grantpt(int);
-#else
-static int
-fake_grantfd(int masterfd)
-{
-    errno = ENOSYS;
-    return -1;
-}
-#define grantpt(fd) fake_grantfd(fd)
-#endif
-
-int
-rb_grantpt(int masterfd)
-{
-    return grantpt(masterfd);
-}