Simplify .gitignore

Author: SteveSandersonMS

.gitignore

@@ -29,16 +29,7 @@ nuget.exe
 npm-debug.log
 /.build/
 
-# The templates can't contain their own .gitignore files, because Yeoman has strange default handling for
-# files with that name (https://github.com/npm/npm/issues/1862). So, each template instead has a template_gitignore
-# file which gets renamed after the files are copied. And so any files that need to be excluded in the source
-# repo have to be excluded here.
-/templates/*/*/*/node_modules/
-/templates/*/*/*/wwwroot/dist/
-/templates/*/*/*/ClientApp/dist/
-/templates/*/*/*/yarn.lock
 .vscode/
 
-/templates/*/*/*/Properties/launchSettings.json
 global.json
 korebuild-lock.txt