Delete duplicate Docs/API directory

This was causing collisions on case-insensitive filesystems  
The proper spelling is all lowercase

Docs/API/README.md

@@ -1,25 +0,0 @@
-# API Documentation
-
-## Introduction
-
-This API provides CRU (Create, Read, Update) operations for various models.
-
-The API requires an API key for some operations. 
-
-The endpoints provided by this API are:
-
-## Generic:
-- / - List all routes (JSON Response)
-- /ping - Returns pong
-- /stats - Simple stats about the bot (Record counts and uptime)
-- /most-recent-drop - Returns the most recent drop (Requires API Key)
-
-## For characters:
-- [`/characters`](characters.md#get-characters)
-- [`/characters/:character_id`](characters.md#get-characterscharacter_id)
-
-## For groups:
-_TODO_
-
-## For Badges:
-_TODO_