Update Makefile

Makefile

@@ -1,11 +1,6 @@
 REBAR:=$(shell which rebar3 || echo ./rebar3)
 REBAR_URL:="https://s3.amazonaws.com/rebar3/rebar3"
 
-gh-pages : TMPDIR := $(shell mktemp -d -t dns_erlang.gh-pages.XXXX)
-gh-pages : BRANCH := $(shell git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1 /')
-gh-pages : STASH := $(shell (test -z "`git status --porcelain`" && echo false) || echo true)
-gh-pages : VERSION := $(shell sed -n 's/.*{vsn,.*"\(.*\)"}.*/\1/p' src/dns_erlang.app.src)
-
 all: build
 
 $(REBAR):
@@ -22,11 +17,11 @@ doc: $(REBAR)
 .PHONY: clean
 clean: $(REBAR)
 	@$(REBAR) clean
-	@rm -fr doc/*
+	@rm -rf doc
 
 .PHONY: fresh
 fresh: clean
-	rm -fr _build/*
+	rm -rf _build
 
 .PHONY: test
 test: $(REBAR) all