Remove unused variable

Co-authored-by: Davide Grassano <34096612+Crivella@users.noreply.github.com>

Author: Flamefire

test/framework/toy_build.py

@@ -2744,7 +2744,7 @@ def test_toy_build_enhanced_sanity_check(self):
         stdout = self.get_stdout()
         self.mock_stdout(False)
 
-        expected_out = toy_custom_sanity_check_step = textwrap.dedent("""
+        expected_out = textwrap.dedent("""
             == sanity checking...
               >> loading modules: toy/0.0...
               >> file 'bin/toy' found: OK