Remove unused functions and constants (#6175)

cmd/format-fs.go

@@ -72,16 +72,6 @@ func newFormatFSV1() (format *formatFSV1) {
 	return f
 }
 
-// Returns the latest "fs" format V2
-func newFormatFSV2() (format *formatFSV2) {
-	f := &formatFSV2{}
-	f.Version = formatMetaVersionV1
-	f.Format = formatBackendFS
-	f.ID = mustGetUUID()
-	f.FS.Version = formatFSVersionV2
-	return f
-}
-
 // Returns the field formatMetaV1.Format i.e the string "fs" which is never likely to change.
 // We do not use this function in XL to get the format as the file is not fcntl-locked on XL.
 func formatMetaGetFormatBackendFS(r io.ReadSeeker) (string, error) {

cmd/logger/logger.go

@@ -377,11 +377,10 @@ func (f fatalMsg) quiet(msg string, args ...interface{}) {
 }
 
 var (
-	logTag       = "ERROR"
-	logBanner    = colorBgRed(colorFgWhite(colorBold(logTag))) + " "
-	emptyBanner  = colorBgRed(strings.Repeat(" ", len(logTag))) + " "
-	minimumWidth = 80
-	bannerWidth  = len(logTag) + 1
+	logTag      = "ERROR"
+	logBanner   = colorBgRed(colorFgWhite(colorBold(logTag))) + " "
+	emptyBanner = colorBgRed(strings.Repeat(" ", len(logTag))) + " "
+	bannerWidth = len(logTag) + 1
 )
 
 func (f fatalMsg) pretty(msg string, args ...interface{}) {

cmd/ui-errors.go

@@ -120,12 +120,6 @@ Example 1:
 		"",
 	)
 
-	uiErrUnableToReadFromBackend = newUIErrFn(
-		"Unable to read from the backend",
-		"Please ensure Minio binary has read permissions for the backend",
-		"",
-	)
-
 	uiErrPortAlreadyInUse = newUIErrFn(
 		"Port is already in use",
 		"Please ensure no other program uses the same address/port",