patch 8.2.2571: test may leave file behind

Problem:    Test may leave file behind.
Solution:   Delete the temporary file.  Don't profile in the running Vim
            instance.
diff --git a/src/testdir/test_profile.vim b/src/testdir/test_profile.vim
index 785cee3..13f5fae 100644
--- a/src/testdir/test_profile.vim
+++ b/src/testdir/test_profile.vim
@@ -600,7 +600,7 @@
   call writefile(lines, 'Xprofile_crash.vim')
   call system(GetVimCommandClean() . ' -es -c "so Xprofile_crash.vim" -c q')
   call assert_equal(0, v:shell_error)
-  call CheckScriptSuccess(lines)
+  call assert_true(readfile('Xprofile_crash.log')->len() > 10)
   call delete('Xprofile_crash.vim')
   call delete('Xprofile_crash.log')
 endfunc