Avoid -Wunused-parameter warnings from testsuite utility

	* testsuite/util/testsuite_api.h: Remove names of unused parameters.

From-SVN: r271741

libstdc++-v3/ChangeLog

 2019-05-29  Jonathan Wakely  <jwakely@redhat.com>
 
+	* testsuite/util/testsuite_api.h: Remove names of unused parameters.
+
 	PR libstdc++/85494 use rdseed and rand_s in std::random_device
 	* acinclude.m4 (GLIBCXX_CHECK_X86_RDSEED): Define macro to check if
 	the assembler supports rdseed.

libstdc++-v3/testsuite/util/testsuite_api.h

@@ -113,18 +113,15 @@ namespace __gnu_test
   // For 26 numeric algorithms requirements, need addable,
   // subtractable, multiplicable.
   inline NonDefaultConstructible
-  operator+(const NonDefaultConstructible& lhs,
-	    const NonDefaultConstructible& rhs)
+  operator+(const NonDefaultConstructible&, const NonDefaultConstructible&)
   { return NonDefaultConstructible(1); }
 
   inline NonDefaultConstructible
-  operator-(const NonDefaultConstructible& lhs,
-	    const NonDefaultConstructible& rhs)
+  operator-(const NonDefaultConstructible&, const NonDefaultConstructible&)
   { return NonDefaultConstructible(1); }
 
   inline NonDefaultConstructible
-  operator*(const NonDefaultConstructible& lhs,
-	    const NonDefaultConstructible& rhs)
+  operator*(const NonDefaultConstructible&, const NonDefaultConstructible&)
   { return NonDefaultConstructible(1); }
 
   // Like unary_function, but takes no argument. (ie, void).