cmGeneratorExpressionNode: Remove outdated lint suppression

Since commit 895efd4e7a (cmGeneratorExpression: Consolidate
recognition of transitive properties, 2024-04-12) a lint suppression
added by commit fb461cacba (silence selected clang-tidy violations,
2016-10-18, v3.8.0-rc1~428^2~1) is no longer needed.

Source/cmGeneratorExpressionNode.cxx

@@ -2916,8 +2916,7 @@ static const struct TargetPropertyNode : public cmGeneratorExpressionNode
           return std::string();
         }
       } else {
-        assert(dagCheckerParent
-                 ->EvaluatingTransitiveProperty()); // NOLINT(clang-tidy)
+        assert(dagCheckerParent->EvaluatingTransitiveProperty());
       }
     }