Remove logo from README (#355)

Removed logo image from the README.

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Author: shchur

README.md

@@ -1,7 +1,3 @@
-<div align="center">
-<img src="https://raw.githubusercontent.com/amazon-science/chronos-forecasting/main/figures/chronos-logo.png" width="60%">
-</div>
-
 <div align="center">
 
 # Chronos: Pretrained Models for Time Series Forecasting