Makefile: Remove ocamlmerlin.native on distclean
Makefile: Remove ocamlmerlin.native on distclean

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