No need for a bunch of copy paste code

Makefile

@@ -17,7 +17,7 @@ build:
 
 build-arm:
 	# Build binary for ARM architecture (aarch64)
-	./util/build_arm.sh
+	GOOS=linux GOARCH=arm64 ./util/build.sh
 
 protobuf:
 	# Generate protobuf shizzle

util/build_arm.sh

@@ -1,42 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2021 The Hush Developers
-# Distributed under the GPLv3 software license, see the accompanying
-# file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
-# Purpose: Script to build the ARM or aarch64 architecture,
-# which is what the PinePhone & newer Raspberry Pi boards are running
-
-set -e
-
-# Check if go is installed on system and exits if it is not
-if ! [ -x "$(command -v go)" ]; then
-  echo 'Error: go is not installed. Install go and try again.' >&2
-  exit 1
-fi
-
-# Check for correct version of go installed on system and exits if it is not
-GO_VERSION=`go version | { read _ _ v _; echo ${v#go}; }`
-GO_VERSION_MAJOR=$(echo $GO_VERSION | cut -d. -f1)
-GO_VERSION_MINOR=$(echo $GO_VERSION | cut -d. -f2)
-if [[ "$GO_VERSION_MINOR" -lt 17 ]]; then
-  echo 'Error: go version 1.17 or greater is required to build lightwallted & that is not installed. Install the correct version and try again.' >&2
-  exit 1
-fi
-
-echo ""
-echo "Welcome to the Hush magic folks..."
-echo ""
-echo ".------..------..------..------..------..------..------..------..------..------..------..------."
-echo "|L.--. ||I.--. ||G.--. ||H.--. ||T.--. ||W.--. ||A.--. ||L.--. ||L.--. ||E.--. ||T.--. ||D.--. |"
-echo "| :/\: || (\/) || :/\: || :/\: || :/\: || :/\: || (\/) || :/\: || :/\: || (\/) || :/\: || :/\: |"
-echo "| (__) || :\/: || :\/: || (__) || (__) || :\/: || :\/: || (__) || (__) || :\/: || (__) || (__) |"
-echo "| '--'L|| '--'I|| '--'G|| '--'H|| '--'T|| '--'W|| '--'A|| '--'L|| '--'L|| '--'E|| '--'T|| '--'D|"
-echo "+------'+------'+------'+------'+------'+------'+------'+------'+------'+------'+------'+------'"
-
-# now to compiling...
-echo ""
-echo "You have the correct version of go installed, so starting to compile Hush lightwalletd for you..."
-env GOOS=linux GOARCH=arm64 go build -o lightwalletd_aarch64 main.go
-mv lightwalletd_aarch64 lightwalletd
-echo ""
-echo "Hush lightwalletd is now compiled for your ARM farm or Pine Rock64. Enjoy and reach out if you need support."
-echo "For options, run ./lightwalletd --help"