editors/micro: Garbage collect aarch64 patches

This patch is not needed anymore.

Approved by:	portmgr (build fix blanket)

editors/micro/files/patch-vendor_github.com_zyedidia_pty_ztypes__freebsd__arm64.go

@@ -1,16 +0,0 @@
---- vendor/github.com/zyedidia/pty/ztypes_freebsd_arm64.go.orig	2020-09-10 23:26:01 UTC
-+++ vendor/github.com/zyedidia/pty/ztypes_freebsd_arm64.go
-@@ -0,0 +1,13 @@
-+// Created by cgo -godefs - DO NOT EDIT
-+// cgo -godefs types_freebsd.go
-+
-+package pty
-+
-+const (
-+	_C_SPECNAMELEN = 0x3f
-+)
-+
-+type fiodgnameArg struct {
-+	Len int32
-+	Buf *byte
-+}