Revert "edtlib: test "last modified" semantic for ... specs"

This unit test was added to cover the change introduced by [1].

Further work on related issues [2] showed that the chosen approach
is dead end.
We're reverting all changes made in [1].

[1] edtlib: fix last modified semantic in included property specs
[2] edtlib: Preserve paths of properties from included child bindings

See also: zephyrproject-rtos#65221, zephyrproject-rtos#78095

This reverts commit 70eaa61.

Signed-off-by: Christophe Dufaza <[email protected]>

Author: dottspina

scripts/dts/python-devicetree/tests/test-bindings-include/base.yaml

@@ -365,18 +365,6 @@ def test_include_filters():
         assert set(child.prop2specs.keys()) == {'child-prop-1', 'child-prop-2',
                                                 'x', 'z'}  # root level 'y' is blocked
 
-def test_include_paths():
-    '''Test "last modified" semantic for included bindings paths.'''
-
-    fname2path = {'base.yaml': 'test-bindings-include/base.yaml',
-                  'modified.yaml': 'test-bindings-include/modified.yaml'}
-
-    with from_here():
-        top = edtlib.Binding('test-bindings-include/top.yaml', fname2path)
-
-        assert 'modified.yaml' == os.path.basename(top.prop2specs["x"].path)
-        assert 'base.yaml' == os.path.basename(top.prop2specs["y"].path)
-        assert 'top.yaml' == os.path.basename(top.prop2specs["p"].path)
 
 def test_bus():
     '''Test 'bus:' and 'on-bus:' in bindings'''