use local-rebuild instead of BOOTSTRAP_SKIP_TARGET_SANITY workaround

Signed-off-by: onur-ozkan <work@onurozkan.dev>

src/tools/opt-dist/src/tests.rs

@@ -67,6 +67,7 @@ change-id = 115898
 [build]
 rustc = "{rustc}"
 cargo = "{cargo}"
+local-rebuild = true
 
 [target.{host_triple}]
 llvm-config = "{llvm_config}"
@@ -104,9 +105,6 @@ llvm-config = "{llvm_config}"
     }
     cmd(&args)
         .env("COMPILETEST_FORCE_STAGE0", "1")
-        // Above we override the stage 0 compiler with previously compiled compiler,
-        // which can cause confusion in bootstrap's target sanity checks.
-        .env("BOOTSTRAP_SKIP_TARGET_SANITY", "1")
         .run()
         .context("Cannot execute tests")
 }