Revert "adding support for cert chain file in tls inputs"
Revert "adding support for cert chain file in tls inputs"

This reverts commit 131329d3cbd584a14911d868221a955e5d8d6262.

jedisct1/flowgger,salpalvv/flowgger,jedisct1/zok,salpalvv/flowgger,jedisct1/flowgger,jedisct1/zok