remove FreeBSD xfail decorator from TestExitDuringBreak

This test passes for me on FreeBSD 10 and 12(-CURRENT).

llvm.org/pr18190

llvm-svn: 310624

lldb/packages/Python/lldbsuite/test/functionalities/thread/exit_during_break/TestExitDuringBreak.py

@@ -26,9 +26,6 @@ class ExitDuringBreakpointTestCase(TestBase):
     @expectedFailureAll(
         oslist=["linux"],
         bugnumber="llvm.org/pr15824 thread states not properly maintained")
-    @expectedFailureAll(
-        oslist=["freebsd"],
-        bugnumber="llvm.org/pr18190 thread states not properly maintained")
     def test(self):
         """Test thread exit during breakpoint handling."""
         self.build(dictionary=self.getBuildFlags())