Trim unused provider names

Author: sporkmonger

internal/auth/providers/providers.go

@@ -25,20 +25,8 @@ var (
 )
 
 const (
-	// AzureProviderName identifies the Azure AD provider
-	AzureProviderName = "azure"
-	// FacebookProviderName identifies the Facebook provider
-	FacebookProviderName = "facebook"
-	// GitHubProviderName identifies the GitHub provider
-	GitHubProviderName = "github"
-	// GitLabProviderName identifies the GitLab provider
-	GitLabProviderName = "gitlab"
 	// GoogleProviderName identifies the Google provider
 	GoogleProviderName = "google"
-	// LinkedInProviderName identifies the LinkedIn provider
-	LinkedInProviderName = "linkedin"
-	// OIDCProviderName identifies the generic OpenID Connect provider
-	OIDCProviderName = "oidc"
 )
 
 // Provider is an interface exposing functions necessary to authenticate with a given provider.