Upgrade versions of vendored libs

vendor/github.com/klauspost/compress/huff0/bytereader.go

@@ -20,11 +20,6 @@ func (b *byteReader) init(in []byte) {
 	b.off = 0
 }
 
-// advance the stream b n bytes.
-func (b *byteReader) advance(n uint) {
-	b.off += int(n)
-}
-
 // Int32 returns a little endian int32 starting at current offset.
 func (b byteReader) Int32() int32 {
 	v3 := int32(b.b[b.off+3])
@@ -43,11 +38,6 @@ func (b byteReader) Uint32() uint32 {
 	return (v3 << 24) | (v2 << 16) | (v1 << 8) | v0
 }
 
-// unread returns the unread portion of the input.
-func (b byteReader) unread() []byte {
-	return b.b[b.off:]
-}
-
 // remain will return the number of bytes remaining.
 func (b byteReader) remain() int {
 	return len(b.b) - b.off