app-misc/screen: Drop obsolete patch.

Package-Manager: portage-2.2.27

app-misc/screen/files/screen-9999-bool_visual_bell.patch

@@ -1,11 +0,0 @@
---- a/src/telnet.c
-+++ b/src/telnet.c
-@@ -41,7 +41,7 @@
- 
- extern Window *fore;
- extern Layer *flayer;
--extern int visual_bell;
-+extern bool visual_bell;
- extern char screenterm[];
- extern int af;
- 

app-misc/screen/screen-9999.ebuild

@@ -36,9 +36,6 @@ src_prepare() {
 	# Don't use utempter even if it is found on the system
 	epatch "${FILESDIR}"/${PN}-4.3.0-no-utempter.patch
 
-	# visual_bell is no longer an int
-	epatch "${FILESDIR}"/${PN}-9999-bool_visual_bell.patch
-
 	# sched.h is a system header and causes problems with some C libraries
 	mv sched.h _sched.h || die
 	sed -i '/include/ s:sched.h:_sched.h:' screen.h || die