More KNF.
Provide support for non-funopen systems.
ok beck
Disable TLS support...

Just kidding!

unifdef OPENSSL_NO_TLS since we will never want to actually do that.

ok deraadt@
Tsk. Tsk. Someone forgot to compile test the other half.
Stop setting the EVP_MD_CTX_FLAG_NON_FIPS_ALLOW - it has been ignored since
OpenSSL 1.0.0.

ok miod@ (a little while back)