Remove misc/wireguard.patch

Handled by Wireguard itself with https://git.zx2c4.com/WireGuard/commit/?id=b308a48cab8d28b27df128bd70c49b3f30931d2f

patch/misc/wireguard.patch

@@ -1,13 +0,0 @@
-diff --git a/net/wireguard/noise.c b/net/wireguard/noise.c
-index 4405125..2e572b2 100644
---- a/src/noise.c
-+++ b/src/noise.c
-@@ -17,6 +17,8 @@
- #include <linux/highmem.h>
- #include <crypto/algapi.h>
-
-+#define ALIGN_DOWN(value, align) ((value) & ~((align) - 1))
-+
- /* This implements Noise_IKpsk2:
-  *
-  * <- s