Remove dev scripts from repo (already in .gitignore)

These are local dev convenience scripts that should not be tracked.
- quick_web.sh - Flask dev server launcher
- rbld_containers.sh - Docker rebuild helper

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

quick_web.sh

@@ -1,3 +0,0 @@
-#!/bin/bash
-cd ./frontends/web/
-python app.py

rbld_containers.sh

@@ -1,4 +0,0 @@
-#!/bin/bash
-sudo docker-compose down
-sudo docker-compose build
-sudo docker-compose up -d