Remove godeps from makefile (#1750)

Go already relies on its own internal caching, and replicating that in
make adds unnecessary complexity, and is error prone, since the makefile
doesn't recognize if new files are added, and isn't aware of build
constraints.

Remove `*.gomake` and `*.godeps` portion of makefile and invoke go directly.
Remove `hack/gomakedeps.sh` file

Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com>

Makefile

@@ -94,23 +94,9 @@ out/delta.tar.gz: bin/init bin/vsockexec bin/cmd/gcs bin/cmd/gcstools bin/cmd/ho
 	tar -zcf $@ -C rootfs .
 	rm -rf rootfs
 
--include deps/cmd/gcs.gomake
--include deps/cmd/gcstools.gomake
--include deps/cmd/hooks/wait-paths.gomake
--include deps/cmd/tar2ext4.gomake
--include deps/internal/tools/snp-report.gomake
-
-# Implicit rule for includes that define Go targets.
-%.gomake: $(SRCROOT)/Makefile
+bin/cmd/gcs bin/cmd/gcstools bin/cmd/hooks/wait-paths bin/cmd/tar2ext4 bin/internal/tools/snp-report:
 	@mkdir -p $(dir $@)
-	@/bin/echo $(@:deps/%.gomake=bin/%): $(SRCROOT)/hack/gomakedeps.sh > $@.new
-	@/bin/echo -e '\t@mkdir -p $$(dir $$@) $(dir $@)' >> $@.new
-	@/bin/echo -e '\t$$(GO_BUILD) -o $$@.new $$(SRCROOT)/$$(@:bin/%=%)' >> $@.new
-	@/bin/echo -e '\tGO="$(GO)" $$(SRCROOT)/hack/gomakedeps.sh $$@ $$(SRCROOT)/$$(@:bin/%=%) $$(GO_FLAGS) $$(GO_FLAGS_EXTRA) > $(@:%.gomake=%.godeps).new' >> $@.new
-	@/bin/echo -e '\tmv $(@:%.gomake=%.godeps).new $(@:%.gomake=%.godeps)' >> $@.new
-	@/bin/echo -e '\tmv $$@.new $$@' >> $@.new
-	@/bin/echo -e '-include $(@:%.gomake=%.godeps)' >> $@.new
-	mv $@.new $@
+	GOOS=linux $(GO_BUILD) -o $@ $(SRCROOT)/$(@:bin/%=%)
 
 bin/vsockexec: vsockexec/vsockexec.o vsockexec/vsock.o
 	@mkdir -p bin

hack/gomakedeps.sh

@@ -1,20 +0,0 @@
-#!/bin/sh
-# Creates Makefile rules that enumerate all the input files
-# for the Go package provided on the command line.
-
-set -e
-
-GO="${GO:-go}"
-target_bin="$1"
-target_pkg="$2"
-shift 2
-fmt=$(cat <<EOF
-{{ if not .Standard }}
-$target_bin: {{\$dir := .Dir}}{{ range .GoFiles }}{{\$dir}}/{{.}} {{end}}
-{{if .Module}}$target_bin: {{.Module.GoMod}}{{end}}
-{{end}}
-EOF
-)
-
-"$GO" list "$@" -f '{{ .ImportPath }} {{ join .Deps "\n" }}' "$target_pkg" |
-    xargs "$GO" list "$@" -find -f "$fmt"