Remove vifm and test all filetypes

scripts/test

@@ -2,18 +2,10 @@
 
 set -e
 
-vim -N --startuptime /dev/stdout -u <(
+vim --clean -N -u <(
   echo "filetype plugin indent on"
   echo "syntax enable"
   echo "let &rtp='$PWD,'.&rtp"
-  cat ftdetect/polyglot.vim | grep -E 'set ft=[a-z-]+' -o | sort | uniq | awk -F '=' '{ print $2 }' | while read ft; do
-    echo "try"
-    echo "  enew"
-    echo "  set ft=$ft"
-    echo "catch"
-    echo "  echo v:exception"
-    echo "  exec ':cq!'"
-    echo "endtry"
-  done
+  echo "source scripts/test_filetypes.vim"
   echo "exec ':q!'"
 )