Remove systemd meson configuration variables

This commit removes meson configuration variables which are not actually
configurable and can be hardcoded.

Change-Id: Id9d198bf6562e108b8a7472e770e6d8bb84e2684
Signed-off-by: Ravi Teja <raviteja28031990@gmail.com>
diff --git a/meson.build b/meson.build
index c48a930..1ea6293 100644
--- a/meson.build
+++ b/meson.build
@@ -45,15 +45,6 @@
 conf_data.set_quoted('LDAP_CONF_PERSIST_PATH', '/var/lib/phosphor-ldap-conf',
                       description : 'path of directory having persisted LDAP configuration enabled property.')
 
-conf_data.set_quoted('SYSTEMD_BUSNAME', 'org.freedesktop.systemd1',
-                      description : 'systemd busname.')
-
-conf_data.set_quoted('SYSTEMD_PATH', '/org/freedesktop/systemd1',
-                      description :  'systemd path')
-
-conf_data.set_quoted('SYSTEMD_INTERFACE', 'org.freedesktop.systemd1.Manager',
-                      description : 'systemd interface.')
-
 conf_header = configure_file(output: 'config.h',
     configuration: conf_data)
 
diff --git a/phosphor-ldap-config/ldap_config_mgr.cpp b/phosphor-ldap-config/ldap_config_mgr.cpp
index eec8579..f0630f6 100644
--- a/phosphor-ldap-config/ldap_config_mgr.cpp
+++ b/phosphor-ldap-config/ldap_config_mgr.cpp
@@ -17,6 +17,10 @@
 namespace ldap
 {
 
+constexpr auto systemdBusname = "org.freedesktop.systemd1";
+constexpr auto systemdObjPath = "/org/freedesktop/systemd1";
+constexpr auto systemdInterface = "org.freedesktop.systemd1.Manager";
+
 constexpr auto nslcdService = "nslcd.service";
 constexpr auto nscdService = "nscd.service";
 constexpr auto ldapScheme = "ldap";
@@ -49,8 +53,8 @@
 {
     try
     {
-        auto method = bus.new_method_call(SYSTEMD_BUSNAME, SYSTEMD_PATH,
-                                          SYSTEMD_INTERFACE, "RestartUnit");
+        auto method = bus.new_method_call(systemdBusname, systemdObjPath,
+                                          systemdInterface, "RestartUnit");
         method.append(service.c_str(), "replace");
         bus.call_noreply(method);
     }
@@ -65,8 +69,8 @@
 {
     try
     {
-        auto method = bus.new_method_call(SYSTEMD_BUSNAME, SYSTEMD_PATH,
-                                          SYSTEMD_INTERFACE, "StopUnit");
+        auto method = bus.new_method_call(systemdBusname, systemdObjPath,
+                                          systemdInterface, "StopUnit");
         method.append(service.c_str(), "replace");
         bus.call_noreply(method);
     }