netstack: Remove dnsd

It isn't used anywhere. Relibc has it's own dns resolver.

Cargo.lock

@@ -324,16 +324,6 @@ dependencies = [
  "generic-array",
 ]
 
-[[package]]
-name = "dns-parser"
-version = "0.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7020f6760aea312d43d23cb83bf6c0c49f162541db8b02bf95209ac51dc253d"
-dependencies = [
- "byteorder 1.5.0",
- "quick-error",
-]
-
 [[package]]
 name = "env_logger"
 version = "0.8.4"
@@ -708,12 +698,6 @@ dependencies = [
  "redox_termios",
 ]
 
-[[package]]
-name = "quick-error"
-version = "1.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
-
 [[package]]
 name = "quote"
 version = "1.0.40"
@@ -905,8 +889,6 @@ name = "redox_netstack"
 version = "0.1.0"
 dependencies = [
  "anyhow",
- "dns-parser",
- "ioslice",
  "libredox",
  "log",
  "netutils",