[lldb][test] Remove Windows xfail from forward declaration tests

Since #141344, they are
passing.

Author: DavidSpickett

lldb/test/API/lang/c/forward/TestForwardDeclaration.py

@@ -53,7 +53,6 @@ def test(self):
     @skipIfDarwin
     @skipIf(compiler=no_match("clang"))
     @skipIf(compiler_version=["<", "8.0"])
-    @expectedFailureAll(oslist=["windows"])
     def test_debug_names(self):
         """Test that we are able to find complete types when using DWARF v5
         accelerator tables"""

lldb/test/API/lang/cpp/forward/TestCPPForwardDeclaration.py

@@ -47,7 +47,6 @@ def test(self):
     @skipIfDarwin
     @skipIf(compiler=no_match("clang"))
     @skipIf(compiler_version=["<", "8.0"])
-    @expectedFailureAll(oslist=["windows"])
     def test_debug_names(self):
         """Test that we are able to find complete types when using DWARF v5
         accelerator tables"""