bootstrap: no longer pass --git-hash

Author: jieyouxu

src/bootstrap/src/core/build_steps/test.rs

@@ -2125,10 +2125,6 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the
 
         cmd.arg("--channel").arg(&builder.config.channel);
 
-        if !builder.config.omit_git_hash {
-            cmd.arg("--git-hash");
-        }
-
         let git_config = builder.config.git_config();
         cmd.arg("--git-repository").arg(git_config.git_repository);
         cmd.arg("--nightly-branch").arg(git_config.nightly_branch);