Switch from Godep to go vendoring

Godeps/_workspace/src/github.com/cznic/b/Makefile

@@ -1,53 +0,0 @@
-# Copyright 2014 The b Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file.
-
-.PHONY: all todo clean cover generic mem nuke cpu
-
-testbin=b.test
-
-all: editor
-	go build
-	go vet
-	golint .
-	go install
-	make todo
-
-editor:
-	gofmt -l -s -w .
-	go test -i
-	go test
-
-clean:
-	@go clean
-	rm -f *~ *.out $(testbin)
-
-cover:
-	t=$(shell tempfile) ; go test -coverprofile $$t && go tool cover -html $$t && unlink $$t
-
-cpu:
-	go test -c
-	./$(testbin) -test.cpuprofile cpu.out
-	go tool pprof --lines $(testbin) cpu.out
-
-generic:
-	@# writes to stdout a version where the type of key is KEY and the type
-	@# of value is VALUE.
-	@#
-	@# Intended use is to replace all textual occurrences of KEY or VALUE in
-	@# the output with your desired types.
-	@sed -e 's|interface{}[^{]*/\*K\*/|KEY|g' -e 's|interface{}[^{]*/\*V\*/|VALUE|g' btree.go
-
-mem:
-	go test -c
-	./$(testbin) -test.bench . -test.memprofile mem.out -test.memprofilerate 1
-	go tool pprof --lines --web --alloc_space $(testbin) mem.out
-
-nuke: clean
-	rm -f *.test *.out
-
-todo:
-	@grep -n ^[[:space:]]*_[[:space:]]*=[[:space:]][[:alpha:]][[:alnum:]]* *.go || true
-	@grep -n TODO *.go || true
-	@grep -n BUG *.go || true
-	@grep -n println *.go || true