Revert "units: add initrd-cryptsetup.target"

This reverts commit 6c5496c492.

sysinit.target is shared between the initrd and the host system. Pulling in
initrd-cryptsetup.target into sysinit.target causes the following warning at
boot:
Oct 27 10:42:30 workstation-uefi systemd[1]: initrd-cryptsetup.target: Starting requested but asserts failed.
Oct 27 10:42:30 workstation-uefi systemd[1]: Assertion failed for initrd-cryptsetup.target.

src/cryptsetup/cryptsetup-generator.c

@@ -455,16 +455,10 @@ static int create_disk(
                 }
         }
 
-        const char *target;
-        if (in_initrd())
-                target = "initrd-cryptsetup.target";
-        else if (netdev)
-                target = "remote-cryptsetup.target";
-        else
-                target = "cryptsetup.target";
-
         if (!nofail)
-                fprintf(f, "Before=%s\n", target);
+                fprintf(f,
+                        "Before=%s\n",
+                        netdev ? "remote-cryptsetup.target" : "cryptsetup.target");
 
         if (password && !keydev) {
                 r = print_dependencies(f, password);
@@ -527,7 +521,8 @@ static int create_disk(
                 return log_error_errno(r, "Failed to write unit file %s: %m", n);
 
         if (!noauto) {
-                r = generator_add_symlink(arg_dest, target,
+                r = generator_add_symlink(arg_dest,
+                                          netdev ? "remote-cryptsetup.target" : "cryptsetup.target",
                                           nofail ? "wants" : "requires", n);
                 if (r < 0)
                         return r;