Chore: remove PAPERLESS_DEBUG references to avoid confusion

docs/changelog.md

@@ -6007,7 +6007,6 @@ primarily.
         a very good job at ocr'ing a document with the default
         language. Certain language specifics such as umlauts may not get
         picked up properly.
-    -   `PAPERLESS_DEBUG` defaults to `false`.
     -   The presence of `PAPERLESS_DBHOST` now determines whether to use
         PostgreSQL or SQLite.
     -   `PAPERLESS_OCR_THREADS` is gone and replaced with

paperless.conf.example

@@ -1,10 +1,6 @@
 # Have a look at the docs for documentation.
 # https://docs.paperless-ngx.com/configuration/
 
-# Debug. Only enable this for development.
-
-#PAPERLESS_DEBUG=false
-
 # Required services
 
 #PAPERLESS_REDIS=redis://localhost:6379