chore: don't default to installing system files in scripts (#2592)

scripts/android/build_mwebd.sh

@@ -1,6 +1,6 @@
-if [[ "$1" == "--dont-install" ]]; then
-  echo "Skipping Go installation as per --dont-install flag"
-else
+#!/bin/bash
+
+if [[ "$1" == "--install" ]]; then
   # install go > 1.24:
   wget https://go.dev/dl/go1.24.1.linux-amd64.tar.gz
   sudo rm -rf /usr/local/go && sudo tar -C /usr/local -xzf go1.24.1.linux-amd64.tar.gz

scripts/ios/build_mwebd.sh

@@ -2,9 +2,7 @@
 
 set -e -x
 
-if [[ "$1" == "--dont-install" ]]; then
-  echo "Skipping Go installation as per --dont-install flag"
-else
+if [[ "$1" == "--install" ]]; then
   # install go > 1.24:
   brew install go
   export PATH=$PATH:~/go/bin