Update main.py

[ggykx123]

Remove redundant logic that checks for the existence of dist_rule_path.

I have signed the Open Information Security Foundation

[jufajardini]

Hey, thanks for your interest in contributing to our project :)

While there isn't a full review of this, before code can be merged, the commit message style and author style have to be adjusted to our guidelines: https://docs.suricata.io/en/latest/devguide/contributing/code-submission-process.html#commits

[jasonish]

Per comments: commit style, name in commit.