supress unused warning

Author: timfel

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/BuiltinConstructors.java

@@ -60,7 +60,6 @@
 import com.oracle.graal.python.builtins.CoreFunctions;
 import com.oracle.graal.python.builtins.PythonBuiltinClassType;
 import com.oracle.graal.python.builtins.PythonBuiltins;
-import com.oracle.graal.python.builtins.modules.BuiltinConstructorsFactory.FloatNodeFactory;
 import com.oracle.graal.python.builtins.objects.PEllipsis;
 import com.oracle.graal.python.builtins.objects.PNone;
 import com.oracle.graal.python.builtins.objects.PNotImplemented;
@@ -509,7 +508,7 @@ protected static FromNativeSubclassNode cacheGetFloat() {
         }
 
         @Specialization
-        Object doNativeFloat(PythonNativeClass cls, PythonNativeObject possibleBase,
+        Object doNativeFloat(@SuppressWarnings("unused") PythonNativeClass cls, PythonNativeObject possibleBase,
                         @Cached("cacheGetFloat()") FromNativeSubclassNode getFloat) {
             Object convertedFloat = getFloat.execute(possibleBase);
             if (convertedFloat instanceof Double) {