!6 cancel gdb in buildrequires

From: @lijingyuan007
Reviewed-by: @zengwefeng
Signed-off-by: @zengwefeng

libserf.spec

@@ -3,12 +3,12 @@
 
 Name:           libserf
 Version:        1.3.9
-Release:        12
+Release:        13
 Summary:        High-Performance Asynchronous HTTP Client Library
 License:        ASL 2.0
 URL:            https://serf.apache.org/
 Source0:        https://archive.apache.org/dist/serf/serf-%{version}.tar.bz2
-BuildRequires:  gcc, %{scons_pkg}, pkgconfig, zlib-devel gdb
+BuildRequires:  gcc, %{scons_pkg}, pkgconfig, zlib-devel
 BuildRequires:  apr-devel, apr-util-devel, krb5-devel, openssl-devel
 
 Patch0:         %{name}-norpath.patch
@@ -68,6 +68,12 @@ export LD_LIBRARY_PATH=%{buildroot}%{_libdir}
 %doc README CHANGES design-guide.txt
 
 %changelog
+* Mon Jul 19 2021 lijingyuan <lijingyuan3@huawei.com> - 1.3.9-13
+- Type:requirement
+- ID:NA
+- SUG:NA
+- DESC:cancel gdb in buildrequires
+
 * Fri Mon 20 2020 songnannan <songnannan2@huawei.com> - 1.3.9-12
 - add gdb in buildrequires