Delete upload.go since //testing/catapult should do all of its work in a single invocation.

Background: //testing/catapult is meant to be used by the Fuchsia.py recipe to parse, modify and upload performance test output to catapult.  Initially I intended to create this tool with multiple commands that would each perform one step from the list mentioned above. It's actually easier to perform this all in one step so I'm deleting the extra files I created for each command.
Change-Id: Ic33a00a2e91b47b92c1c8d429e319a2b63d637f8
diff --git a/catapult/cmd/catapult/upload.go b/catapult/cmd/catapult/upload.go
deleted file mode 100644
index ce1b3cb..0000000
--- a/catapult/cmd/catapult/upload.go
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright 2017 The Fuchsia Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file
-
-package main
-
-import (
-	"context"
-	"flag"
-	"log"
-
-	"github.com/google/subcommands"
-)
-
-type UploadCommand struct{}
-
-func (*UploadCommand) Name() string {
-	return "upload"
-}
-
-func (*UploadCommand) Usage() string {
-	return "upload"
-}
-
-func (*UploadCommand) Synopsis() string {
-	return "Uploads data to catapult"
-}
-
-func (*UploadCommand) SetFlags(flags *flag.FlagSet) {}
-
-func (*UploadCommand) Execute(ctx context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
-	log.Println("Unimplemented: Upload")
-	return subcommands.ExitFailure
-}