Update upcoming_hackathons.yml

Author: DCGenomics

_data/upcoming_hackathons.yml

@@ -4,16 +4,6 @@
   community:
 
 ### Online Hackathons! ###
-
-- date: "June 1-4, 2021"
-  loc: "MultiOmic Clinical Reporting! (Virtual) -- Carnegie Mellon University Libraries"
-  link: https://www.library.cmu.edu/about/publications/news/accepting-applications-hackathon-2021
-  community access:
-  
-- date: "June 25 - July 30, 2021"
-  loc: "Hack4Rare -- Childrens Tumor Foundation (Virtual)"
-  link: https://www.synapse.org/#!Synapse:syn25551331/wiki/609587
-  community access:  
 
 - date: "October 10-13, 2021"
   loc: "SV/Pangenomes III (Hybrid) -- Baylor College of Medicine"
@@ -24,11 +14,6 @@
   loc: "EU Biohackathon (Hybrid)"
   link: https://biohackathon-europe.org/projects.html 
   community access:
-
-- date: "TBD, 2021"
-  loc: "Rocky Mountain Genomics HackCon III -- BioFrontiers Institute, University of Colorado"
-  link: Coming soon!
-  community access:
 
   - date: "Open"
   loc: "Kaggle Research Dataset Challenge"