!13 remove libdb dependency

From: @haochenstar 
Reviewed-by: @wangxp006 
Signed-off-by: @wangxp006

postfix.spec

@@ -23,7 +23,7 @@
 Name:           postfix
 Summary:        Postfix Mail Transport Agent
 Version:        3.3.1
-Release:        15
+Release:        16
 Epoch:          2
 URL:            http://www.postfix.org
 License:        (IPL-1.0 and GPLv2+) or (EPL-2.0 and GPLv2+)
@@ -47,7 +47,7 @@ Patch8:         fix-build-error-with_glibc2.30-ftbfs.patch
 Patch9:         fix-multiple-definition-error-with-gcc-10.patch
 Patch10:        postfix-3.6.2-glibc-234-build-fix.patch 
 
-BuildRequires:  libdb-devel perl-generators pkgconfig zlib-devel systemd-units libicu-devel libnsl2-devel gcc m4 openldap-devel
+BuildRequires:  perl-generators pkgconfig zlib-devel systemd-units libicu-devel libnsl2-devel gcc m4 openldap-devel
 BuildRequires:  cyrus-sasl-devel pcre-devel mariadb-connector-c-devel postgresql-devel sqlite-devel openssl-devel procps-ng
 BuildRequires:  chrpath
 Requires(post): systemd-sysv %{_sbindir}/alternatives %{_bindir}/openssl
@@ -156,6 +156,7 @@ fi
 CCARGS="${CCARGS} -DDEF_CONFIG_DIR=\\\"%{postfix_config_dir}\\\""
 CCARGS="${CCARGS} $(getconf LFS_CFLAGS)"
 
+CCARGS="${CCARGS} -DNO_DB" 
 LDFLAGS="%{?__global_ldflags} %{?_hardened_build:-Wl,-z,relro,-z,now}"
 
 make -f Makefile.init makefiles shared=yes dynamicmaps=yes \
@@ -546,6 +547,12 @@ fi
 %{postfix_doc_dir}/README_FILES/*
 
 %changelog
+* Wed Feb 23 2022 xihaochen<xihaochen@h-partner.com> - 2:3.3.1-16
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:remove libdb dependency
+
 * Tue Sep 07 2021 gaihuiying <gaihuiying1@huawei.com> - 2:3.3.1-15
 - Type:bugfix
 - ID:NA