Remove broken garbage collection youtube link

Author: ssrinath

README.md

@@ -1593,7 +1593,6 @@ software engineer, and to be aware of certain technologies and algorithms, so yo
         - [ ] [Side-Channel Attacks](https://www.youtube.com/watch?v=PuVMkSEcPiI&index=15&list=PLUl4u3cNGP62K2DjQLRxDNRi0z2IRWnNh)
 
 - ### Garbage collection
-    - [ ] [Garbage collection (Java); Augmenting data str (video)](https://www.youtube.com/watch?v=StdfeXaKGEc&list=PL-XXv-cvA_iAlnI-BQr9hjqADPBtujFJd&index=25)
     - [ ] [Compilers (video)](https://www.youtube.com/playlist?list=PLO9y7hOkmmSGTy5z6HZ-W4k2y8WXF7Bff)
     - [ ] [GC in Python (video)](https://www.youtube.com/watch?v=iHVs_HkjdmI)
     - [ ] [Deep Dive Java: Garbage Collection is Good!](https://www.infoq.com/presentations/garbage-collection-benefits)