Remove standalone iOS Addressables build workflow (#6371)

The nightly iOS TestFlight build already builds and uploads iOS
addressables as part of its pipeline. The standalone workflow added
unnecessary complexity and forced platform switches on the unity-mac
runner. Manual TestFlight dispatches cover any need for immediate
addressable updates.

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

ci/github_actions/build_ios_addressables.sh

@@ -1,49 +0,0 @@
-#!/usr/bin/env bash
-
-# Build iOS Addressables only (no player build)
-# This switches Unity to iOS target and builds addressables for CDN upload
-
-set -euxo pipefail
-
-# Read Unity version from project file
-UNITY_VERSION=$(grep "m_EditorVersion:" src/main/csharp/net/eagle0/clients/unity/eagle0/ProjectSettings/ProjectVersion.txt | head -1 | sed 's/m_EditorVersion: //')
-
-# Use runner-specific build directory if EAGLE0_BUILD_DIR is set, otherwise default
-BUILD_BASE="${EAGLE0_BUILD_DIR:-/tmp/eagle0}"
-
-WORKSPACE=$(pwd)
-
-echo "Building protos"
-./scripts/build_protos.sh
-UNITY_INSTALL_PATH="/Applications/Unity/Hub/Editor"
-LOG_PATH=${1:-"${BUILD_BASE}/editor_ios_addressables.log"}
-
-echo "Building iOS Addressables"
-
-mkdir -p "$(dirname "$LOG_PATH")"
-
-# Build Addressables for iOS target
-# Uses BuildiOSAddressables which explicitly switches build target
-# Capture exit code to show log on failure
-set +e
-${UNITY_INSTALL_PATH}/${UNITY_VERSION}/Unity.app/Contents/MacOS/Unity \
-   -nographics \
-   -batchmode \
-   -quit \
-   -executeMethod BuildScript.BuildiOSAddressables \
-   -logFile "$LOG_PATH" \
-   -projectPath "$WORKSPACE/src/main/csharp/net/eagle0/clients/unity/eagle0"
-UNITY_EXIT_CODE=$?
-set -e
-
-if [ $UNITY_EXIT_CODE -ne 0 ]; then
-    echo ""
-    echo "Unity build failed with exit code $UNITY_EXIT_CODE"
-    echo "=== Unity Editor Log (last 200 lines) ==="
-    tail -200 "$LOG_PATH" || echo "Could not read log file at $LOG_PATH"
-    echo "=== End of Unity Editor Log ==="
-    exit $UNITY_EXIT_CODE
-fi
-
-echo "iOS Addressables build complete"
-echo "Bundles should be in: $WORKSPACE/src/main/csharp/net/eagle0/clients/unity/eagle0/ServerData/iOS/"