Remove unused import

Author: otethal

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/hpy/GraalHPyContextFunctions.java

@@ -73,7 +73,6 @@
 import com.oracle.graal.python.builtins.Python3Core;
 import com.oracle.graal.python.builtins.PythonBuiltinClassType;
 import com.oracle.graal.python.builtins.modules.CodecsModuleBuiltins;
-import com.oracle.graal.python.builtins.modules.SysModuleBuiltins;
 import com.oracle.graal.python.builtins.modules.SysModuleBuiltins.GetFileSystemEncodingNode;
 import com.oracle.graal.python.builtins.modules.WarningsModuleBuiltins.WarnNode;
 import com.oracle.graal.python.builtins.objects.PNone;