Clean vendor dependencies

vendor/github.com/konsorten/go-windows-terminal-sequences/sequences.go

@@ -1,36 +0,0 @@
-// +build windows
-
-package sequences
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-var (
-	kernel32Dll    *syscall.LazyDLL  = syscall.NewLazyDLL("Kernel32.dll")
-	setConsoleMode *syscall.LazyProc = kernel32Dll.NewProc("SetConsoleMode")
-)
-
-func EnableVirtualTerminalProcessing(stream syscall.Handle, enable bool) error {
-	const ENABLE_VIRTUAL_TERMINAL_PROCESSING uint32 = 0x4
-
-	var mode uint32
-	err := syscall.GetConsoleMode(syscall.Stdout, &mode)
-	if err != nil {
-		return err
-	}
-
-	if enable {
-		mode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING
-	} else {
-		mode &^= ENABLE_VIRTUAL_TERMINAL_PROCESSING
-	}
-
-	ret, _, err := setConsoleMode.Call(uintptr(unsafe.Pointer(stream)), uintptr(mode))
-	if ret == 0 {
-		return err
-	}
-
-	return nil
-}