Revert "app-misc/screen: Add missing pty.h header"

This reverts commit df2788666f.

Doesn't apply. See https://bugs.gentoo.org/953896#c3.

Bug: https://bugs.gentoo.org/953896
Signed-off-by: Sam James <sam@gentoo.org>

app-misc/screen/files/screen-4.9.1-add-missing-pty.h-header.patch

@@ -1,12 +0,0 @@
-diff --git a/src/pty.c b/src/pty.c
-index 6791fd5..093273d 100644
---- a/src/pty.c
-+++ b/src/pty.c
-@@ -29,6 +29,7 @@
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <fcntl.h>
-+#include <pty.h>
- #include <signal.h>
- 
- #if defined(__OpenBSD__)

app-misc/screen/screen-4.9.1-r1.ebuild

@@ -34,7 +34,6 @@ PATCHES=(
 	# Don't use utempter even if it is found on the system.
 	"${FILESDIR}"/${PN}-4.3.0-no-utempter.patch
 	"${FILESDIR}"/${PN}-4.9.1-utmp-exit.patch
-	"${FILESDIR}"/${PN}-4.9.1-add-missing-pty.h-header.patch
 )
 
 src_prepare() {