Update .env.example to remove all OpenAI settings

Trying to get OpenAI to not show in the models dropdown

Author: BrianGenisio

.env.example

@@ -179,7 +179,7 @@ PROXY=
 # OPENAI_API_KEY=user_provided
 # OPENAI_MODELS=gpt-4o
 
-DEBUG_OPENAI=false
+# DEBUG_OPENAI=false
 
 # TITLE_CONVO=false
 # OPENAI_TITLE_MODEL=gpt-4o-mini
@@ -325,8 +325,8 @@ TTS_API_KEY=
 # Moderation             #
 #========================#
 
-OPENAI_MODERATION=false
-OPENAI_MODERATION_API_KEY=
+# OPENAI_MODERATION=false
+# OPENAI_MODERATION_API_KEY=
 # OPENAI_MODERATION_REVERSE_PROXY=
 
 BAN_VIOLATIONS=true