Ports/perl5: Remove unnecessary drand48 patch

With `drand48` now in LibC, this patch is not needed.

Ports/perl5/patches/0001-pp_sys-Avoid-redefining-h_errno.patch

@@ -0,0 +1,22 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Beckett Normington <beckett@b0ba.dev>
+Date: Tue, 25 Jul 2023 17:00:13 -0400
+Subject: [PATCH] pp_sys: Avoid redefining `h_errno`
+
+---
+ pp_sys.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/pp_sys.c b/pp_sys.c
+index b18911b3f4b047fa9b8422f66530cbee094af824..0bef81722379e4f28e18f622f9e1c977a9debd63 100644
+--- a/pp_sys.c
++++ b/pp_sys.c
+@@ -69,7 +69,7 @@
+    compiling multithreaded and singlethreaded ($ccflags et al).
+    HOST_NOT_FOUND is typically defined in <netdb.h>.
+ */
+-#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
++#if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__) && !defined(__serenity__)
+ extern int h_errno;
+ #endif
+