tree-wide: drop msg argument for DEFINE_CONFIG_PARSE() macro and friends

This makes the macros use log_syntax_parse_error(), hopefully which provides
more informative log message in general, and reduces binary size.

src/udev/net/link-config.c

@@ -1446,13 +1446,10 @@ DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(
         config_parse_mac_address_policy,
         mac_address_policy,
         MACAddressPolicy,
-        MAC_ADDRESS_POLICY_NONE,
-        "Failed to parse MAC address policy");
+        MAC_ADDRESS_POLICY_NONE);
 
 DEFINE_CONFIG_PARSE_ENUMV(config_parse_name_policy, name_policy, NamePolicy,
-                          _NAMEPOLICY_INVALID,
-                          "Failed to parse interface name policy");
+                          _NAMEPOLICY_INVALID);
 
 DEFINE_CONFIG_PARSE_ENUMV(config_parse_alternative_names_policy, alternative_names_policy, NamePolicy,
-                          _NAMEPOLICY_INVALID,
-                          "Failed to parse alternative names policy");
+                          _NAMEPOLICY_INVALID);

src/udev/udevd.c

@@ -65,7 +65,7 @@ static int listen_fds(int *ret_ctrl, int *ret_netlink) {
         return 0;
 }
 
-static DEFINE_CONFIG_PARSE_ENUM(config_parse_resolve_name_timing, resolve_name_timing, ResolveNameTiming, "Failed to parse resolve name timing");
+static DEFINE_CONFIG_PARSE_ENUM(config_parse_resolve_name_timing, resolve_name_timing, ResolveNameTiming);
 
 static int manager_parse_udev_config(Manager *manager) {
         int r, log_val = -1;