vim-patch:8.1.0299: misplaced comment

Problem:    misplaced comment
Solution:   Remove comment
142ae736d9

src/nvim/testdir/runtest.vim

@@ -245,7 +245,7 @@ let s:flaky = [
       \ 'Test_oneshot()',
       \ 'Test_out_cb()',
       \ 'Test_paused()',
-      \ 'Test_popup_and_window_resize()',  " sometimes fails on Mac
+      \ 'Test_popup_and_window_resize()',
       \ 'Test_quoteplus()',
       \ 'Test_quotestar()',
       \ 'Test_reltime()',