Merge #1123

1123: Remove unnecessary condition r=mergify[bot] a=ionutfilip

## What type of PR?
Minor change

## What does this PR do?
Removes unnecessary statement

### Related issue(s)
- No related issues

## Prerequistes
Before we can consider review and merge, please make sure the following list is done and checked.
If an entry in not applicable, you can check it or remove it from the list.

- [x] In case of feature or enhancement: documentation updated accordingly
- [x] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.


Co-authored-by: Ionut Filip <ionut.philip@gmail.com>

services/rspamd/start.py

@@ -10,9 +10,7 @@ log.basicConfig(stream=sys.stderr, level=os.environ.get("LOG_LEVEL", "WARNING"))
 
 # Actual startup script
 os.environ["FRONT_ADDRESS"] = system.resolve_address(os.environ.get("HOST_FRONT", "front"))
-
-if "HOST_REDIS" not in os.environ:
-    os.environ["REDIS_ADDRESS"] = system.resolve_address(os.environ.get("HOST_REDIS", "redis"))
+os.environ["REDIS_ADDRESS"] = system.resolve_address(os.environ.get("HOST_REDIS", "redis"))
 
 
 for rspamd_file in glob.glob("/conf/*"):