remvoe regexrules from stale folder

export regexrules patch with `git format-patch`

regexrules/regexrules.patch

@@ -1,3 +1,14 @@
+From 3ae5cd4ff7b2cc73bd2c0ebb25d6afcde64e8e6d Mon Sep 17 00:00:00 2001
+From: wochap <gean.marroquin@gmail.com>
+Date: Tue, 5 Mar 2024 23:56:23 -0500
+Subject: [PATCH] implement regex support in rules for app_id and title
+
+Enables the use of regular expressions for window rules "app_id" and "title"
+---
+ config.def.h |  1 +
+ dwl.c        | 19 +++++++++++++++++--
+ 2 files changed, 18 insertions(+), 2 deletions(-)
+
 diff --git a/config.def.h b/config.def.h
 index db0babc..ff23b6f 100644
 --- a/config.def.h
@@ -61,4 +72,6 @@ index ef27a1d..df29577 100644
  #ifdef XWAYLAND
  void
  activatex11(struct wl_listener *listener, void *data)
+-- 
+2.42.0