deleting broken link to tutorial on youtube

ElviraQDP · ElviraQDP · commit dae7a47976dd · 2021-01-27T18:20:54.000Z
diff --git a/exercises/07.2-Letter-Counter/README.md b/exercises/07.2-Letter-Counter/README.md
@@ -1,6 +1,3 @@
----
-tutorial: https://www.youtube.com/watch?v=PLCVs_S8Skwp9x
----
 
 # `07.2` Letter Counter
 

-Original file line number
+Diff line change
@@ @@ -1,6 +1,3 @@ @@
 ----
 -tutorial: https://www.youtube.com/watch?v=PLCVs_S8Skwp9x
 ----
 # `07.2` Letter Counter