patches/packages: drop openssh fix that was done now in upstream as well

patches/packages/to-upstream/0006-openssh-Enable-pthread-hack-when-compiling-with-pam.patch

-From a02d444ceba0a5972dd76b2412199edbf35cb072 Mon Sep 17 00:00:00 2001
-From: Michal Hrusecky <michal.hrusecky@nic.cz>
-Date: Wed, 2 May 2018 16:10:06 +0200
-Subject: [PATCH 06/12] openssh: Enable pthread hack when compiling with pam
-
-Signed-off-by: Michal Hrusecky <michal.hrusecky@nic.cz>
----
- net/openssh/Makefile | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/net/openssh/Makefile b/net/openssh/Makefile
-index 639ce5f..02882df 100644
---- a/net/openssh/Makefile
-+++ b/net/openssh/Makefile
-@@ -194,6 +194,7 @@ CONFIGURE_VARS += LD="$(TARGET_CC)"
- 
- ifeq ($(BUILD_VARIANT),with-pam)
- TARGET_LDFLAGS += -lpthread
-+TARGET_CFLAGS += -DUNSUPPORTED_POSIX_THREADS_HACK=1
- endif
- 
- define Build/Compile
--- 
-2.19.1
-