revert

Signed-off-by: Naohiro Yoshida <[email protected]>

Author: Naohiro Yoshida

light-client/src/header/mod.rs

@@ -280,6 +280,10 @@ pub(crate) mod test {
             &self.headers
         }
 
+        pub(crate) fn eth_header_mut(&mut self) -> &mut ETHHeaders {
+            &mut self.headers
+        }
+
         pub(crate) fn new(
             account_proof: Vec<u8>,
             headers: ETHHeaders,