Remove module name workaround in doctests

Author: msimacek

graalpython/com.oracle.graal.python.test/src/tests/unittest_tags/test_descrtut.txt

@@ -1,4 +1,6 @@
+DocTestCase.test.test_descrtut.__test__.tut1
 DocTestCase.test.test_descrtut.__test__.tut2
+DocTestCase.test.test_descrtut.__test__.tut4
 DocTestCase.test.test_descrtut.__test__.tut5
 DocTestCase.test.test_descrtut.__test__.tut6
 DocTestCase.test.test_descrtut.__test__.tut7

graalpython/com.oracle.graal.python.test/src/tests/unittest_tags/test_metaclass.txt

@@ -1 +1,2 @@
+DocTestCase.test.test_metaclass.__test__.doctests
 test.test_metaclass.TestMain.test_main

graalpython/com.oracle.graal.python.test/src/tests/unittest_tags/test_unpack.txt

@@ -1,2 +1,3 @@
+DocTestCase.test.test_unpack.__test__.doctests
 test.test_unpack.TestCornerCases.test_extended_oparg_not_ignored
 test.test_unpack.TestMain.test_main

graalpython/lib-python/3/test/test_descrtut.py

@@ -100,7 +100,7 @@ def merge(self, other):
     >>> print(sortdict(a.__dict__))
     {'default': -1000, 'x1': 100, 'x2': 200}
     >>>
-""".replace("test.test_descrtut", "graalpython.lib-python.3.test.test_descrtut")  # GraalPy: an artifact of how we run tests
+"""
 
 class defaultdict2(dict):
     __slots__ = ['default']
@@ -303,7 +303,7 @@ class passed as the first argument of foo() is the class involved in the
 specifies the class C. But it stresses the difference between these class
 methods and methods defined in metaclasses (where an upcall to a metamethod
 would pass the target class as an explicit first argument).
-""".replace("test.test_descrtut", "graalpython.lib-python.3.test.test_descrtut")  # GraalPy: an artifact of how we run tests
+"""
 
 test_5 = """
 

graalpython/lib-python/3/test/test_metaclass.py

@@ -250,7 +250,7 @@
     [...]
     test.test_metaclass.ObscureException
 
-""".replace('test.test_metaclass', 'graalpython.lib-python.3.test.test_metaclass')  # GraalPy change: difference in how we run the tests
+"""
 
 import sys
 

graalpython/lib-python/3/test/test_unpack.py

@@ -142,7 +142,7 @@
       ...
     ValueError: too many values to unpack (expected 0)
 
-""".replace('test.test_unpack', 'graalpython.lib-python.3.test.test_unpack')  # GraalPy change: difference due to how we run tests
+"""
 
 __test__ = {'doctests' : doctests}