revert

Author: eserilev

book/src/help_vc.md

@@ -68,7 +68,9 @@ FLAGS:
             If this flag is set, Lighthouse will always prefer blocks constructed by builders, regardless of payload
             value.
         --produce-block-v3
-            This flag is deprecated and no longer in use.
+            Enable block production via the block v3 endpoint for this validator client. This should only be enabled
+            when paired with a beacon node that has this endpoint implemented. This flag will be enabled by default in
+            future.
         --unencrypted-http-transport
             This is a safety flag to ensure that the user is aware that the http transport is unencrypted and using a
             custom HTTP address is unsafe.

lighthouse/tests/validator_client.rs

@@ -421,6 +421,20 @@ fn no_doppelganger_protection_flag() {
         .run()
         .with_config(|config| assert!(!config.enable_doppelganger_protection));
 }
+#[test]
+fn produce_block_v3_flag() {
+    CommandLineTest::new()
+        .flag("produce-block-v3", None)
+        .run()
+        .with_config(|config| assert!(config.produce_block_v3));
+}
+
+#[test]
+fn no_produce_block_v3_flag() {
+    CommandLineTest::new()
+        .run()
+        .with_config(|config| assert!(!config.produce_block_v3));
+}
 
 #[test]
 fn no_gas_limit_flag() {