Update src/about.py

removing unclear pie chart

src/about.py

@@ -185,7 +185,6 @@ The above datasets are modified to cater to the clinical setting. For this, the
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-The pie chart on the left below the distribution of clinical entities and their original dataset types.
 """
 
 ENTITY_DISTRIBUTION_IMG = """<img src="file/assets/entity_distribution.png" alt="Clinical X HF" width="750" height="500">"""