build: remove unnecessary systemd dependency

Change-Id: I09c540957850dd05ff41ac81e2abb958dcb4ecf9
diff --git a/meson.build b/meson.build
index 578625e..4ddd290 100644
--- a/meson.build
+++ b/meson.build
@@ -13,8 +13,6 @@
 
 cxx = meson.get_compiler('cpp')
 
-systemd = dependency('systemd', required : true)
-
 sdbusplus_dep = dependency('sdbusplus')
 
 if cxx.has_header('CLI/CLI.hpp')
@@ -51,7 +49,6 @@
 configure_file(output: 'config.h', configuration: conf_data)
 
 deps = [
-    systemd,
     CLI11_dep,
     sdbusplus_dep,
     phosphorlogging,