Revert "sc-cli: add no-beefy flag to cli config (#14754)" (#14766)

This reverts commit 64dda775f4.

substrate/client/cli/src/commands/run_cmd.rs

@@ -51,10 +51,6 @@ pub struct RunCmd {
 	#[arg(long)]
 	pub no_grandpa: bool,
 
-	/// Disable BEEFY voter when running in validator mode, otherwise disable the BEEFY observer.
-	#[arg(long)]
-	pub no_beefy: bool,
-
 	/// Listen to all RPC interfaces.
 	/// Default is local. Note: not all RPC methods are safe to be exposed publicly. Use an RPC
 	/// proxy server to filter out dangerous methods. More details:
@@ -317,10 +313,6 @@ impl CliConfiguration for RunCmd {
 		Ok(self.no_grandpa)
 	}
 
-	fn disable_beefy(&self) -> Result<bool> {
-		Ok(self.no_beefy)
-	}
-
 	fn rpc_max_connections(&self) -> Result<u32> {
 		Ok(self.rpc_max_connections)
 	}