postfix: Remove unused patches

These were dropped from SRC_URI in ad0f53d2bb (postfix: upgrade 3.10.9 -> 3.11.2) but the files were left behind:

  0001-makedefs-Account-for-linux-7.x-version.patch

AI-Generated: Uses Claude Code
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>

meta-networking/recipes-daemons/postfix/files/0001-makedefs-Account-for-linux-7.x-version.patch

@@ -1,47 +0,0 @@
-From 5466d510dfbc2b7a81dcf766f83d2c89066c0446 Mon Sep 17 00:00:00 2001
-From: Changqing Li <changqing.li@windriver.com>
-Date: Mon, 11 May 2026 18:16:07 +0000
-Subject: [PATCH] makedefs: Account for linux 7.x version
-
-Major version has bumped to 7, update the scripts
-
-Upstream-Status: Backport [The latest stable version 3.11 already fixed]
-
-Refer:
-https://www.ftp.saix.net/MTA/postfix/index.html
-
-Signed-off-by: Changqing Li <changqing.li@windriver.com>
----
- makedefs            | 2 +-
- src/util/sys_defs.h | 2 +-
- 2 files changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/makedefs b/makedefs
-index 74b103d..fe8c618 100644
---- a/makedefs
-+++ b/makedefs
-@@ -625,7 +625,7 @@ EOF
- 		: ${SHLIB_ENV="LD_LIBRARY_PATH=`pwd`/lib"}
- 		: ${PLUGIN_LD="${CC-gcc} -shared"}
- 		;;
--    Linux.[3456].*)
-+    Linux.[34567].*)
- 		SYSTYPE=LINUX$RELEASE_MAJOR
- 		case "$CCARGS" in
- 		 *-DNO_DB*) ;;
-diff --git a/src/util/sys_defs.h b/src/util/sys_defs.h
-index 70aab23..c5472eb 100644
---- a/src/util/sys_defs.h
-+++ b/src/util/sys_defs.h
-@@ -763,7 +763,7 @@ extern int initgroups(const char *, int);
-   * LINUX.
-   */
- #if defined(LINUX2) || defined(LINUX3) || defined(LINUX4) || defined(LINUX5) \
--	|| defined(LINUX6)
-+	|| defined(LINUX6) || defined(LINUX7)
- #define SUPPORTED
- #define UINT32_TYPE	unsigned int
- #define UINT16_TYPE	unsigned short
--- 
-2.53.0
-