!4 fix uninstall error

From: @lwg99 
Reviewed-by: @open-bot 
Signed-off-by: @open-bot

zvbi.spec

@@ -1,6 +1,6 @@
 Name:               zvbi
 Version:            0.2.35
-Release:            7
+Release:            8
 Summary:            A library provides functions to capture and decode VBI data
 License:            LGPLv2+ and GPLv2+ and BSD
 URL:                http://zapping.sourceforge.net/ZVBI/index.html
@@ -12,9 +12,9 @@ Patch0002:          %{name}-0.2.25-openfix.patch
 BuildRequires:      gcc-c++ doxygen fontconfig gettext >= 0.16.1 libpng-devel
 BuildRequires:      libICE-devel xorg-x11-font-utils systemd-units
 
-Requires(post):     systemd-units fontconfig
+Requires(post):     systemd-units
 Requires(preun):    systemd-units
-Requires(postun):   systemd-units fontconfig
+Requires(postun):   systemd-units
 
 provides:           %{name}-fonts = %{version}-%{release}
 Obsoletes:          %{name}-fonts < %{version}-%{release}
@@ -134,5 +134,8 @@ fi
 %{_mandir}/man1/*
 
 %changelog
+* Fri Nov 24 2023 lwg <weigangli99@gmail.com> - 0.2.35-8
+- fix uninstall error
+
 * Mon Dec 02 2019 Jiangping Hu <hujiangping@huawei.com> - 0.2.35-7
 - Package init