docs: remove non-applicable reference

Signed-off-by: Athan <kgryte@gmail.com>

Author: kgryte

lib/node_modules/@stdlib/stats/base/ndarray/dnanmeanors/README.md

@@ -118,14 +118,8 @@ console.log( v );
 
 <!-- /.examples -->
 
-* * *
-
 <section class="references">
 
-## References
-
--   Higham, Nicholas J. 1993. "The Accuracy of Floating Point Summation." _SIAM Journal on Scientific Computing_ 14 (4): 783–99. doi:[10.1137/0914050][@higham:1993a].
-
 </section>
 
 <!-- /.references -->