Remove regexpengine workaround

Shougo · pearofducks · commit 19e6ae0f2258 · 2019-12-07T10:39:01.000+01:00
diff --git a/ftplugin/ansible.vim b/ftplugin/ansible.vim
@@ -1,6 +1,2 @@
-" Slow yaml highlighting workaround
-if exists('+regexpengine') && ('&regexpengine' == 0)
-  setlocal regexpengine=1
-endif
 set isfname+=@-@
 set path+=./../templates,./../files,templates,files
