Move solana-validator-info into cli (#5768)

* Move solana-validator-info into cli

* Remove solana-validator-info and update docs

* Update test to use app()

cli/src/main.rs

@@ -1,8 +1,11 @@
 use clap::{crate_description, crate_name, crate_version, Arg, ArgGroup, ArgMatches, SubCommand};
 use console::style;
-use solana_cli::config::{self, Config};
-use solana_cli::display::println_name_value;
-use solana_cli::wallet::{app, parse_command, process_command, WalletConfig, WalletError};
+use solana_cli::{
+    config::{self, Config},
+    display::println_name_value,
+    input_validators::is_url,
+    wallet::{app, parse_command, process_command, WalletConfig, WalletError},
+};
 use solana_sdk::signature::{gen_keypair_file, read_keypair, KeypairUtil};
 use std::error;
 
@@ -104,20 +107,6 @@ pub fn parse_args(matches: &ArgMatches<'_>) -> Result<WalletConfig, Box<dyn erro
     })
 }
 
-// Return an error if a url cannot be parsed.
-fn is_url(string: String) -> Result<(), String> {
-    match url::Url::parse(&string) {
-        Ok(url) => {
-            if url.has_host() {
-                Ok(())
-            } else {
-                Err("no host provided".to_string())
-            }
-        }
-        Err(err) => Err(format!("{:?}", err)),
-    }
-}
-
 fn main() -> Result<(), Box<dyn error::Error>> {
     solana_logger::setup();
     let matches = app(crate_name!(), crate_description!(), crate_version!())