I have been following a long Handmade Hero's tutorial series and I have been using vs 2015 enterprise. I want to know if it is possible for me to continue editing the project without all the extra solution files. Sorry if this is vague, just ask if you have questions. <3
A project has to have a parent solution file, but you can just make individual solution+project combos and store them in their own folders (untick "Create folder for solution" so the .sln file is in the same folder as the .vcxproj file).
I believe it's also possible to delete the .sln file and just open the .vcxproj file, but I wouldn't recommend it - some project settings are stored in the .sln file.