Remove unused macversion script

dist/macos/macversion.sh

@@ -1,22 +0,0 @@
-#!/bin/sh
-
-macos_version=$(sw_vers -productVersion)
-macos_version_major=$(echo $macos_version | awk -F '[.]' '{print $1}')
-macos_version_minor=$(echo $macos_version | awk -F '[.]' '{print $2}')
-
-if [ "${macos_version_major}" = "10" ]; then
-  macos_codenames=(
-    ["13"]="highsierra"
-    ["14"]="mojave"
-    ["15"]="catalina"
-  )
-  if [[ -n "${macos_codenames[$macos_version_minor]}" ]]; then
-    echo "${macos_codenames[$macos_version_minor]}"
-  else
-    echo "unknown"
-  fi
-elif [ "${macos_version_major}" = "11" ]; then
-  echo "bigsur"
-else
-  echo "unknown"
-fi