Ports/perl5: Remove no longer needed Makefile patch

Following the removal of the `drand48` patch to the configure script,
we can now remove this patch as it is no longer needed to prevent an
interpreter hang.

Ports/perl5/patches/0003-configure-Add-hint-for-serenity.patch

@@ -0,0 +1,40 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Beckett Normington <beckett@b0ba.dev>
+Date: Thu, 27 Jul 2023 13:58:01 -0400
+Subject: [PATCH] configure: Add hint for `serenity`
+
+---
+ cnf/hints/serenity | 24 ++++++++++++++++++++++++
+ 1 file changed, 24 insertions(+)
+ create mode 100644 cnf/hints/serenity
+
+diff --git a/cnf/hints/serenity b/cnf/hints/serenity
+new file mode 100644
+index 0000000000000000000000000000000000000000..3e038d0ac1660d7ee485bc32ddaec5a1c953cabd
+--- /dev/null
++++ b/cnf/hints/serenity
+@@ -0,0 +1,24 @@
++libs='-ldl -lm -lcrypt -lcore'
++
++# Use OS's malloc() by default.
++case "$usemymalloc" in
++'') usemymalloc='n' ;;
++esac
++
++# uses gcc.
++cc='gcc'
++ld='gcc'
++
++# as of the latest some symbols are confusing the nm lookup
++case "$usenm" in
++'') usenm='undef' ;;
++esac
++
++# disable nanosleep
++d_nanosleep='undef'
++
++# don't try to test min/max of gmtime/localtime
++sGMTIME_max=2147483647
++sGMTIME_min=-2147481748
++sLOCALTIME_max=2147483647
++sLOCALTIME_min=-2147481748