Delete unused source files

[tmaczynski]

There is at least on source file:
TSqlAnalyzer/src/TSqlAnalyzer/TSqlAnalyzer/TSqlAnalyzer/CodeFixProvider.cs
which is not included in any project.

I think that it should be deleted or included in csproj.

[ErikEJ]

Feel free to do a PR, if you are anle to 😄

[vendettamit]

Let's not delete that I think this can be re-used. Do we have a code formatter or suggested edit provider? I don't think so.