soc1-167: removed soc-init script

flow/soc-init

-#-----------------------------------------------------------------------------
-# SoC Labs Workarea initialisation Script
-# - sets submodule branches to main - can then be checked out to other branches from there.
-# A joint work commissioned on behalf of SoC Labs, under Arm Academic Access license.
-#
-# Contributors
-#
-# David Mapstone (d.a.mapstone@soton.ac.uk)
-#
-# Copyright  2022, SoC Labs (www.soclabs.org)
-#-----------------------------------------------------------------------------
-
-#!/usr/bin/env bash
-
-# Source environment variables for all submodules
-cd $DESIGN_ROOT
-for d in $PROJECT_DIR/* ; do
-    if [ -e "$d/.git" ]; then
-        echo $d
-        if [ -f "$d/set_env.sh" ]; then
-        # If .git file exists - submodule
-            # git config -f .gitmodules submodule.$d.branch main
-            git submodule set-branch --branch main $d
-        fi
-    fi
-done
-git submodule update --remote --recursive
-git submodule foreach --recursive git checkout main
-git restore $DESIGN_ROOT/.gitmodules
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