[lldb] [testsuite] TestReproducerAttach.py: Fix dependency on external symbol files

D55859 and D63339 prevented needless dependencies on system symbol
files. This testcase was checked-in afterwards and it brings back one
such unwanted dependency. Under some circumstances it may cause false
FAILs and/or excessive resource usage to run the testcase.

clang-format does not support .py so I have formatted it as I found most
compatible.

Also this is not a full testcase-style initialization, for example
--no-lldbinit ignores env("NO_LLDBINIT") setting which lldbtest.py does
implement:
  # If we spawn an lldb process for test (via pexpect), do not load the
  # init file unless told otherwise.
  if os.environ.get("NO_LLDBINIT") != "NO":
      self.lldbOption += " --no-lldbinit"

But this is what lldbpexpect.py does - it also ignores
env("NO_LLDBINIT"). Sure one could also fix lldbpexpect.py to unify the
initialization more with lldbtest.py but I find that outside of the
scope of this patch.

Differential Revision: https://reviews.llvm.org/D79649

lldb/test/API/functionalities/reproducers/attach/TestReproducerAttach.py

@@ -47,9 +47,10 @@ class ReproducerAttachTestCase(TestBase):
         # Use Popen because pexpect is overkill and spawnSubprocess is
         # asynchronous.
         capture = subprocess.Popen([
-            lldbtest_config.lldbExec, '-b', '--capture', '--capture-path',
-            reproducer, '-o', 'proc att -n {}'.format(exe), '-o',
-            'reproducer generate'
+            lldbtest_config.lldbExec, '-b', '--no-lldbinit', '--no-use-colors']
+            + sum(map(lambda x: ['-O', x], self.setUpCommands()), [])
+            + ['--capture', '--capture-path', reproducer,
+            '-o', 'proc att -n {}'.format(exe), '-o', 'reproducer generate'
         ],
                                    stdin=subprocess.PIPE,
                                    stdout=subprocess.PIPE,