Remove Keyconjurer Upgrade

This feature has caused us a lot of problems over the years:

* It would brick itself on Windows if you failed to download the file
  for any reason
* Sometimes the DownloadURL would not be set
* Relying on the releases always being at a specific URL meant that it
  was difficult to change it for any reason (For example, to
support a stable and development release channel)

We are removing this command and will instead move to supporting package
managers like Homebrew for OSX and Chocolatey for Windows.

It is recommended that folks who depend on this project do the same.

cli/consts.go

@@ -7,7 +7,6 @@ var (
 	ServerAddress  string
 	Version        = "TBD"
 	BuildTimestamp = "BuildTimestamp is not set"
-	DownloadURL    = "URL not set yet"
 	// CallbackPorts is a list of ports that will be attempted in no particular order for hosting an Oauth2 callback web server.
 	// This cannot be set using -ldflags='-X ..' because -X requires that this be a string literal or uninitialized.
 	//
@@ -19,10 +18,5 @@ const (
 	// DefaultTTL for requested credentials in hours
 	DefaultTTL uint = 1
 	// DefaultTimeRemaining for new key requests in minutes
-	DefaultTimeRemaining  uint   = 5
-	LinuxAmd64BinaryName  string = "keyconjurer-linux-amd64"
-	LinuxArm64BinaryName  string = "keyconjurer-linux-arm64"
-	WindowsBinaryName     string = "keyconjurer-windows.exe"
-	DarwinArm64BinaryName string = "keyconjurer-darwin-arm64"
-	DarwinAmd64BinaryName string = "keyconjurer-darwin-amd64"
+	DefaultTimeRemaining uint = 5
 )

cli/root.go

@@ -32,7 +32,6 @@ func init() {
 	rootCmd.AddCommand(accountsCmd)
 	rootCmd.AddCommand(getCmd)
 	rootCmd.AddCommand(setCmd)
-	rootCmd.AddCommand(upgradeCmd)
 	rootCmd.AddCommand(&switchCmd)
 	rootCmd.AddCommand(&aliasCmd)
 	rootCmd.AddCommand(&unaliasCmd)