Remove passing tests from test262 status file

test/test262/test262.status

Index: test/test262/test262.status
===================================================================
--- test/test262/test262.status	(revision 8590)
+++ test/test262/test262.status	(working copy)
@@ -453,12 +453,6 @@
 #      (15.4.5.1 step 4.e.ii)
 15.2.3.6-4-276: FAIL
 # Bug? Object.defineProperty - 'O' is an Arguments object of a function that has
-#      formal parameters, 'name' is own property which is defined in both
-#      [[ParameterMap]] of 'O' and 'O', is deleted afterwards, and 'desc' is
-#      accessor descriptor, test 'name' is redefined in 'O' with all correct
-#      attribute values (10.6 [[DefineOwnProperty]] step 3)
-15.2.3.6-4-290-1: FAIL
-# Bug? Object.defineProperty - 'O' is an Arguments object of a function that has
 #      formal parameters, 'name' is own accessor property of 'O' which is also
 #      defined in [[ParameterMap]] of 'O', and 'desc' is accessor descriptor,
 #      test updating multiple attribute values of 'name' (10.6
@@ -864,12 +858,6 @@
 #      ToUint32('P') is greater than value of the length property in 'O'
 #      (15.4.5.1 step 4.e.ii)
 15.2.3.7-6-a-265: FAIL
-# Bug? Object.defineProperties - 'O' is an Arguments object, 'P' is own property
-#      which is ever defined in both [[ParameterMap]] of 'O' and 'O', and is
-#      deleted afterwards, and 'desc' is accessor descriptor, test 'P' is
-#      redefined in 'O' with all correct attribute values (10.6
-#      [[DefineOwnProperty]] step 3)
-15.2.3.7-6-a-279: FAIL
 # Bug? Object.defineProperties - 'O' is an Arguments object, 'P' is own accessor
 #      property of 'O' which is also defined in [[ParameterMap]] of 'O', and
 #      'desc' is accessor descriptor, test updating multiple attribute values of