meson: drop libsystemd_network from several binaries

This reduces the size of udevadm:

Before:
```
$ ll udevadm
-rwxrwxr-x 1 watanabe watanabe 1203800 Oct 29 01:36 udevadm
```

After:
```
$ ll udevadm
-rwxrwxr-x 1 watanabe watanabe 1094384 Oct 29 01:38 udevadm
```

1 files changed, 0 insertions, 1 deletions

diff --git a/src/fuzz/meson.build b/src/fuzz/meson.build
index 01f119fcd0..d984382020 100644
--- a/src/fuzz/meson.build
+++ b/src/fuzz/meson.build
@@ -108,7 +108,6 @@ fuzzers += [
         [['src/fuzz/fuzz-udev-rules.c'],
          [libudev_core,
           libudev_static,
-          libsystemd_network,
           libshared],
          [threads,
           libacl]],