Revert "musl: add upstream security fix for CVE-2017-15650"

This reverts commit 5a9013c6d1.

This patch was already added by commit 4c05a1fd66, no need to add it
twice.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/musl/0003-in-dns-parsing-callback-enforce-MAXADDRS-to-preclude.patch

@@ -1,35 +0,0 @@
-From 45ca5d3fcb6f874bf5ba55d0e9651cef68515395 Mon Sep 17 00:00:00 2001
-From: Rich Felker <dalias@aerifal.cx>
-Date: Wed, 18 Oct 2017 14:50:03 -0400
-Subject: [PATCH] in dns parsing callback, enforce MAXADDRS to preclude
- overflow
-
-MAXADDRS was chosen not to need enforcement, but the logic used to
-compute it assumes the answers received match the RR types of the
-queries. specifically, it assumes that only one replu contains A
-record answers. if the replies to both the A and the AAAA query have
-their answer sections filled with A records, MAXADDRS can be exceeded
-and clobber the stack of the calling function.
-
-this bug was found and reported by Felix Wilhelm.
-
-Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
----
- src/network/lookup_name.c | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/src/network/lookup_name.c b/src/network/lookup_name.c
-index 066be4d5..209c20f0 100644
---- a/src/network/lookup_name.c
-+++ b/src/network/lookup_name.c
-@@ -111,6 +111,7 @@ static int dns_parse_callback(void *c, int rr, const void *data, int len, const
- {
- 	char tmp[256];
- 	struct dpc_ctx *ctx = c;
-+	if (ctx->cnt >= MAXADDRS) return -1;
- 	switch (rr) {
- 	case RR_A:
- 		if (len != 4) return -1;
--- 
-2.11.0
-