remove useless binary encode and decode

.nushell/binary.nu

-# decode a list of integer bytes into the underlying encoded string
-export def "bytes decode" [encoding: string = "utf-8"]: list<int> -> string {
-    each { into binary | bytes at 0..1 } | bytes collect | decode $encoding
-}
-
-# encode an encoded string into the underlying list of integer bytes
-export def "bytes encode" [encoding: string = "utf-8"]: string -> list<int> {
-    let bytes = $in | encode $encoding
-    seq 1 ($bytes | bytes length) | each {|i|
-        $bytes | bytes at ($i - 1)..($i) | into int
-    }
-}
-
 export def "bytes from_int" []: [int -> binary, list<int> -> binary] {
     each { into binary --compact } | bytes collect
 }

tests/binary.nu

-use ../.nushell binary [
-    "bytes decode", "bytes encode", "bytes from_int", "bytes to_int"
-]
+use ../.nushell binary [ "bytes from_int", "bytes to_int" ]
 
 use std assert
 
@@ -18,8 +16,4 @@ def main [] {
 
     let bytes = random-bytes 1_000
     assert equal ($bytes | bytes from_int | bytes to_int) $bytes
-
-    const input = "hello world!"
-    assert equal ($input | bytes encode) $hello_world_int
-    assert equal ($input | bytes encode | bytes decode) $input
 }