fix: Removed alert from SEDAC dataset page

Author: vidhi04bhatia

datasets/sedac-popdensity-yeargrid5yr-v4.11.data.mdx

@@ -94,14 +94,6 @@ layers:
       alt: SEDAC Gridded World Population Density - Population Density
 
 ---
-<Block>
-  <Prose>
-    <div style={{ border: '2px solid red', padding: '10px', display: 'inline-block', color: '#1b2631' }}>
-      <span style={{ color: 'red', fontWeight: 'bold' }}>Attention!</span>
-      SEDAC data and information are no longer being updated at this time. The information on Earthdata represents the best data and information available for SEDAC before March 7, 2025.
-    </div>
-  </Prose>
-</Block>
 
 <Block>
   <Prose>