Remove outdated comment

Author: AlexeySachkov

sycl/test/regression/operator-names.cpp

@@ -3,9 +3,6 @@
 //===----------------------------------------------------------------------===//
 // This test checks if any SYCL header files use C++ operator name keywords
 // e.g. and, or, not
-//
-// This test does not use -fsyntax-only because it does not appear to respect
-// the -fno-operator-names option
 //===----------------------------------------------------------------------===//
 
 #include <sycl/sycl.hpp>