If you want to remove the Featured Image from showing on the Post page itself, then go to your functions.php file and comment out (or remove) this part –
//* Add featured image above the entry content
add_action( 'genesis_entry_header', 'squareone_featured_photo', 5 );
function squareone_featured_photo() {
if ( is_attachment() || ! genesis_get_option( 'content_archive_thumbnail' ) )
return;
if ( is_singular() && $image = genesis_get_image( array( 'format' => 'url', 'size' => genesis_get_option( 'image_size' ) ) ) ) {
printf( '<div class="featured-image"><img src="%s" alt="%s" class="entry-image"/></div>', $image, the_title_attribute( 'echo=0' ) );
}
}
Let me know if that helps.
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