title: remove git repository binding from visual studio 2015
body: <p>Initially my project was mapped to a git repository.I Want to remove git mapping and  bind it to tfs (vs2015).I removed .git folder and its related files from the solution(my local drive) and open the solution in vs2015 and change the source control option to tfs. when adding solution to the source control I'm getting the following error
  "the current solution has projects that are located outside the solution folder.These projects will not be source controlled in git repository.To add all the projects to a single git repository please consider all projects under a single folder"
  If I click on OK on this error dialog, it automatically adding git folder to the solution.</p>
  
  <p>I removed source controler provider for GIT from the registry via regedit. Now when i try to add solution to the tfs I am getting the error "The project or solution you opened requires a source control plug-in that is unavailable at this time.</p>
  
  <p>I've tried different ways nothing worked.</p>