myocamlbuild: remove dubious flag
myocamlbuild: remove dubious flag

chambart/merlin,rgrinberg/merlin,neojski/merlin,ocaml/merlin,dra27/merlin,neojski/merlin,the-lambda-church/merlin,ocaml/merlin,chambart/merlin,fxfactorial/merlin,chambart/merlin,the-lambda-church/merlin,dra27/merlin,chambart/merlin,ocaml/merlin,neojski/merlin,the-lambda-church/merlin,rgrinberg/merlin,chriskonstad/merlin,dra27/merlin,dra27/merlin,haselwarter/merlin,fxfactorial/merlin,neojski/merlin,chriskonstad/merlin,haselwarter/merlin,ocaml/merlin,fxfactorial/merlin,rgrinberg/merlin,haselwarter/merlin,rgrinberg/merlin,haselwarter/merlin,fxfactorial/merlin