Revert "Add *.snk strong name key files"

Author: Youssef1313

VisualStudio.gitignore

@@ -269,10 +269,6 @@ ClientBin/
 *.publishsettings
 orleans.codegen.cs
 
-# Including strong name files can present a security risk
-# (https://github.com/github/gitignore/pull/2483#issue-259490424)
-#*.snk
-
 # Since there are multiple workflows, uncomment next line to ignore bower_components
 # (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
 #bower_components/