delete copy constructor for tls_code_loc_t

Author: ayylol

sycl/include/sycl/detail/common.hpp

@@ -131,11 +131,12 @@ class __SYCL_EXPORT tls_code_loc_t {
   /// @details If a previous populated TLS entry exists, this constructor will
   /// capture the informationa and allow you to query the information later.
   tls_code_loc_t();
-  tls_code_loc_t(const tls_code_loc_t &TLSCodeLoc) = default;
-  tls_code_loc_t &operator=(const tls_code_loc_t &TLSCodeLoc) = default;
   /// @brief Iniitializes TLS with CodeLoc if a TLS entry not present
   /// @param CodeLoc The code location information to set up the TLS slot with.
   tls_code_loc_t(const detail::code_location &CodeLoc);
+  // Used to maintain global state, so we do not want to copy
+  tls_code_loc_t(const tls_code_loc_t &) = delete;
+  tls_code_loc_t &operator=(const tls_code_loc_t &) = delete;
   /// If the code location is set up by this instance, reset it.
   ~tls_code_loc_t();
   /// @brief  Query the information in the TLS slot