Revert "Fixed comment in tls_disconnect."

This reverts commit 7f040406acca031d9e7f2e8c397a8348e13e9db9.
Revert "Modified TLS code to handle disconnects a little cleaner."

This reverts commit c273a4ac5e7cca51fc7dbdc10a683227bb164120.
Revert "Fixed tls_read and tls_write to prevent a subsequent crash in SSL_shutdown when read/write errors occur."

This reverts commit 2a4923835143b4196ca7cafdaece687e93e79beb.