Remove verbose flag

The verbose logging in the messenger isn't used anywhere, so this removes the command line
flag as well as cleaning up additional unused functions.

action/debug.go

diff --git a/action/debug.go b/action/debug.go
index 6af9d26..7b8eea6 100644
--- a/action/debug.go
+++ b/action/debug.go
@@ -7,15 +7,6 @@
 // Debug sets the debugging flags across components.
 func Debug(on bool) {
 	msg.Default.IsDebugging = on
-
-	if on == true {
-		msg.Default.IsVerbose = on
-	}
-}
-
-// Verbose sets the verbose flags across components.
-func Verbose(on bool) {
-	msg.Default.IsVerbose = on
 }
 
 // Quiet sets the quiet flags across components.

glide.go

diff --git a/glide.go b/glide.go
index 0c34030..9480580 100644
--- a/glide.go
+++ b/glide.go
@@ -72,11 +72,6 @@
 			Usage: "Quiet (no info or debug messages)",
 		},
 		cli.BoolFlag{
-			Name:   "verbose",
-			Usage:  "Print detailed informational messages",
-			Hidden: true,
-		},
-		cli.BoolFlag{
 			Name:  "debug",
 			Usage: "Print debug verbose informational messages",
 		},
@@ -833,7 +828,6 @@
 // so it can be used by any Glide command.
 func startup(c *cli.Context) error {
 	action.Debug(c.Bool("debug"))
-	action.Verbose(c.Bool("verbose"))
 	action.NoColor(c.Bool("no-color"))
 	action.Quiet(c.Bool("quiet"))
 	action.Init(c.String("yaml"), c.String("home"))

msg/msg.go

diff --git a/msg/msg.go b/msg/msg.go
index 8b0f077..93cb7ca 100644
--- a/msg/msg.go
+++ b/msg/msg.go
@@ -22,9 +22,6 @@
 	// IsDebugging, if true, shows Debug.
 	IsDebugging bool
 
-	// IsVerbose, if true, shows detailed informational messages.
-	IsVerbose bool
-
 	// NoColor, if true, will not use color in the output.
 	NoColor bool
 
@@ -52,7 +49,6 @@
 	m := &Messenger{
 		Quiet:       false,
 		IsDebugging: false,
-		IsVerbose:   false,
 		NoColor:     false,
 		Stdout:      os.Stdout,
 		Stderr:      os.Stderr,
@@ -95,19 +91,6 @@
 	Default.Debug(msg, args...)
 }
 
-// Verbose logs detailed information
-func (m *Messenger) Verbose(msg string, args ...interface{}) {
-	if m.Quiet || !m.IsVerbose {
-		return
-	}
-	m.Info(msg, args...)
-}
-
-// Verbose detailed information using the Default Messenger
-func Verbose(msg string, args ...interface{}) {
-	Default.Verbose(msg, args...)
-}
-
 // Warn logs a warning
 func (m *Messenger) Warn(msg string, args ...interface{}) {
 	prefix := m.Color(Yellow, "[WARN]\t")