Doc: remove obsolete note (#755)
Doc: remove obsolete note (#755)

g:neomake_serialize_abort_on_error exists and is implemented already.
neomake/neomake,neomake/neomake,bonds/neomake,codeinabox/neomake,nerdrew/neomake,datanoise/neomake,euclio/neomake,bonds/neomake,nerdrew/neomake,euclio/neomake