subprojects: update libmpdclient to 2.22

2.22 fixes the "version.h" conflict.

Closes https://github.com/MusicPlayerDaemon/MPD/pull/1927

subprojects/libmpdclient.wrap

@@ -1,8 +1,6 @@
 [wrap-git]
 url = https://github.com/MusicPlayerDaemon/libmpdclient
-revision = v2.21
-
-diff_files = libmpdclient_unicode.patch
+revision = v2.22
 
 [provide]
 libmpdclient = libmpdclient_dep

subprojects/packagefiles/libmpdclient_unicode.patch

@@ -1,27 +0,0 @@
-commit 14e9b3be33a7b7e94bb6504a519e03072bae033d
-Author: Max Kellermann <max@musicpd.org>
-Date:   Wed Dec 20 17:13:54 2023 +0100
-
-    ierror: use FormatMessageA() instead of FormatMessage()
-    
-    Just in case _UNICODE is defined.
-
-diff --git a/src/ierror.c b/src/ierror.c
-index 1642dbd2..e068dc8c 100644
---- a/src/ierror.c
-+++ b/src/ierror.c
-@@ -103,10 +103,10 @@ mpd_error_system_message(struct mpd_error_info *error, int code)
- 	mpd_error_system(error, code);
- 
- #ifdef _WIN32
--	nbytes = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM |
--			       FORMAT_MESSAGE_IGNORE_INSERTS |
--			       FORMAT_MESSAGE_MAX_WIDTH_MASK, NULL, code, 0,
--			       (LPSTR)buffer, sizeof(buffer), NULL);
-+	nbytes = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM |
-+				FORMAT_MESSAGE_IGNORE_INSERTS |
-+				FORMAT_MESSAGE_MAX_WIDTH_MASK, NULL, code, 0,
-+				(LPSTR)buffer, sizeof(buffer), NULL);
- 	mpd_error_message(error, nbytes > 0 ? buffer : "Unknown error");
- #else
- 	mpd_error_message(error, strerror(code));