(chocolateyGH-10) NugetService - remove check for .config

The work of packages.config converted to package names and options is
done in ChocolateyPackageService, so there is no need to check in
NugetService. Remove the logic branch.

src/chocolatey/infrastructure.app/services/NugetService.cs

@@ -253,13 +253,6 @@ public ConcurrentDictionary<string, PackageResult> install_run(ChocolateyConfigu
 
             foreach (string packageName in packageNames.or_empty_list_if_null())
             {
-                if (packageName.to_lower().EndsWith(".config"))
-                {
-                    //todo: determine if .config file for packages .config
-                    //todo: determine if config file exists
-                }
-                else
-                {
                     //todo: get smarter about realizing multiple versions have been installed before and allowing that
 
                     remove_existing_rollback_directory(packageName);
@@ -304,7 +297,6 @@ public ConcurrentDictionary<string, PackageResult> install_run(ChocolateyConfigu
                         packageManager.InstallPackage(availablePackage, config.IgnoreDependencies, config.Prerelease);
                         //packageManager.InstallPackage(packageName, version, configuration.IgnoreDependencies, configuration.Prerelease);
                     }
-                }
             }
 
             return packageInstalls;