Really remove files/patch-dlls_ntdll (a temporary build fix) that I

noted, but missed, in r539797.

This patch still applied, leading to duplication of the hunk in
question, which was benign though.

emulators/wine-devel/files/patch-dlls_ntdll

@@ -1,35 +0,0 @@
-From: Gerald Pfeifer <gerald@pfeifer.com>
-To: wine-devel@winehq.org
-Date: Sun, 7 Jun 2020 00:38:02 +0200 (CEST)
-Subject: [PATCH] ntdll: Replicate InterlockedCompareExchange64 to the Unix library.
-
-Between Wine 5.9 and 5.10 many ntdll functions moved to the Unix
-library. Make the implementation of InterlockedCompareExchange64 via
-RtlInterlockedCompareExchange64 available there as well for targets
-without __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8.
-
-This fixes the build on FreeBSD/i386 with GCC 9.
-
-Signed-off-by: Gerald Pfeifer <gerald@pfeifer.com>
----
- dlls/ntdll/unix/unix_private.h | 4 ++++
- 1 file changed, 4 insertions(+)
-
---- UTC
-diff --git a/dlls/ntdll/unix/unix_private.h b/dlls/ntdll/unix/unix_private.h
-index a422fd825e..a0485b411d 100644
---- dlls/ntdll/unix/unix_private.h
-+++ dlls/ntdll/unix/unix_private.h
-@@ -23,6 +23,10 @@
- 
- #include "unixlib.h"
- 
-+#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8
-+#define InterlockedCompareExchange64(dest,xchg,cmp) RtlInterlockedCompareExchange64(dest,xchg,cmp)
-+#endif
-+
- struct debug_info
- {
-     unsigned int str_pos;       /* current position in strings buffer */
--- 
-2.25.0