How do I remove a SELinux module in CentOS?

I tried but it gave an error.

# ls -l opendkim.pp
-rw-r--r--. 1 root root 1569 Jan  8 01:20 opendkim.pp

# ls -l /etc/selinux/targeted/modules/active/modules/opendkim.pp
-rw-r--r--. 1 root root 344 Jan  8 01:33 /etc/selinux/targeted/modules/active/modules/opendkim.pp

# semodule -r opendkim.pp
SELinux:  Could not load policy file /etc/selinux/targeted/policy/policy.24:  Invalid argument
/sbin/load_policy:  Can't load policy:  Invalid argument
libsemanage.semanage_reload_policy: load_policy returned error code 2.
SELinux:  Could not load policy file /etc/selinux/targeted/policy/policy.24:  Invalid argument
/sbin/load_policy:  Can't load policy:  Invalid argument
libsemanage.semanage_reload_policy: load_policy returned error code 2.
semodule:  Failed!

# ls -lZ /etc/selinux/targeted/policy/policy.24
-rw-r--r--. root root unconfined_u:object_r:semanage_store_t:s0 /etc/selinux/targeted/policy/policy.24

And why does it take 5m+ to fail?

CentOS release 6.8 (Final)

Solution 1:

semodule -r expects the module name, rather than a filename.

So it would be something like:

semodule -r opendkim

Or whatever name you gave the module when defining it.