Remove non-working links for Coursera algorithms, Unity 3d

README.md

@@ -72,10 +72,7 @@ Courses
 
 ### Data Structures and Algorithms
 
-- [CS 61B - Data Structures, Jonathan Shewchuk - UC Berkeley](https://people.eecs.berkeley.edu/~jrs/61b/) ([Videos](https://www.youtube.com/playlist?list=PL4BBB74C7D2A1049C))
 - [CS 61B - Data Structures, Josh Hug, Spring 2016 - UC Berkeley](http://datastructur.es/sp16/)
-- [MOOC - Design and Analysis of Algorithms Part 1 - Prof Roughgarden - Coursera](https://www.youtube.com/playlist?list=PLLH73N9cB21W1TZ6zz1dLkyIm50HylGyg) ([Part 2](https://www.youtube.com/playlist?list=PLLH73N9cB21VPj3H2xwTTye5TC8-UniA2))
-- [MOOC - Algorithms Part 1 - Prof Sedgewick](https://www.youtube.com/playlist?list=PLUX6FBiUa2g4YWs6HkkCpXL6ru02i7y3Q) ([Part 2](https://www.youtube.com/playlist?list=PLqD_OdMOd_6YixsHkd9f4sNdof4IhIima))
 - [6.006 - Introduction to Algorithms, MIT OCW](http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-006-introduction-to-algorithms-fall-2011/lecture-videos/)
 - [CSE 373 - Analysis of Algorithms, Stony Brook - Prof Skiena](http://www.cs.sunysb.edu/~algorith/video-lectures/)
 - [COP 3530 Data Structures and Algorithms, Prof Sahni, UFL](http://www.cise.ufl.edu/~sahni/cop3530/) ([Videos](http://www.cise.ufl.edu/academics/courses/preview/cop3530sahni/))
@@ -724,7 +721,6 @@ Courses
 	- [Programming for Designers - COMP1400-T2 (2010) - UNSW](https://www.youtube.com/playlist?list=PL9444191613E018CC)
 - **Game Development**
 	- [MIT CMS.611J Creating Video Games, Fall 2014](https://ocw.mit.edu/courses/comparative-media-studies-writing/cms-611j-creating-video-games-fall-2014/lecture-videos/)
-	- [Unity3D Tutorials](https://www.youtube.com/playlist?list=PL5FMIyKmleRwYdMIuejPS5csShp237A3X)
 	- [MOOC - Beginning Game Programming with C# - Coursera](http://academictorrents.com/details/0a7ba7e62821e488a0061751fdb81f4298733bea)
 - [Introduction to Geographic Information Systems - IIT Roorkee](http://nptel.ac.in/courses/105107155/)
 - [SCICOMP - An Introduction to Efficient Scientific Computation, Universität Bremen](http://mlecture.uni-bremen.de/ml/index.php?option=com_content&view=article&id=233) ([Lectures - Youtube](https://www.youtube.com/user/fillwithlight/videos))