chore: remove img (#861)

Author: Ad96el

.maintain/media/kilt.png

@@ -1,10 +1,6 @@
 # KILT-node · [![Check Code](https://github.com/KILTprotocol/kilt-node/actions/workflows/check-code.yml/badge.svg)](https://github.com/KILTprotocol/kilt-node/actions/workflows/check-code.yml?query=branch%3Adevelop) · [![Publish Docs](https://github.com/KILTprotocol/kilt-node/actions/workflows/publish-rustdocs.yml/badge.svg)](https://github.com/KILTprotocol/kilt-node/actions/workflows/publish-rustdocs.yml?query=branch%3Adevelop) · [![Build Artifacts](https://gitlab.com/kiltprotocol/kilt-node/badges/develop/pipeline.svg?key_text=Build+Artifacts&key_width=100)](https://gitlab.com/kiltprotocol/kilt-node/-/pipelines?page=1&scope=all&ref=develop)
 
 
-<p align="center">
-  <img src="/.maintain/media/kilt.png">
-</p>
-
 The KILT blockchain is the heart and soul behind KILT Protocol.
 It provides the immutable transaction ledger for the various KILT processes in the network.