Stop running test on Linux for now

Failed at compile time lldb-aarch64-ubuntu bot.
It did clang -E -o interrupt-and-trap-funcs.s interrupt-and-trap-funcs.c
and that added a bunch of standard C header typedefs to
the output .s file which then turn into compile errors
when it tries to compile the .s file as assembly.  Never saw
that behavior in my testing on an ubuntu 24.04 system.

It would have been nice to have the test run on Linux as well
as Darwin, but it's not essential.

Author: jasonmolenda

lldb/test/API/functionalities/unwind/frameless-faulted/TestUnwindFramelessFaulted.py

@@ -10,7 +10,7 @@
 class TestUnwindFramelessFaulted(TestBase):
     NO_DEBUG_INFO_TESTCASE = True
 
-    @skipIf(oslist=no_match([lldbplatformutil.getDarwinOSTriples(), "linux"]))
+    @skipIf(oslist=no_match([lldbplatformutil.getDarwinOSTriples()]))
     @skipIf(archs=no_match(["aarch64", "arm64", "arm64e"]))
     def test_frameless_faulted_unwind(self):
         self.build()