Remove old install.sh script, replaced by bd hooks install

Amp-Thread-ID: https://ampcode.com/threads/T-6d470bf0-ada4-4b71-95ca-21d926837764
Co-authored-by: Amp <amp@ampcode.com>

examples/git-hooks/install.sh

@@ -1,65 +0,0 @@
-#!/bin/bash
-#
-# Install bd git hooks
-#
-# This script copies the bd git hooks to your .git/hooks directory
-# and makes them executable.
-#
-# Usage:
-#   ./examples/git-hooks/install.sh
-
-set -e
-
-# Check if we're in a git repository
-if [ ! -d .git ]; then
-    echo "Error: Not in a git repository root" >&2
-    echo "Run this script from the root of your git repository" >&2
-    exit 1
-fi
-
-# Check if we're in a bd workspace
-if [ ! -d .beads ]; then
-    echo "Error: Not in a bd workspace" >&2
-    echo "Run 'bd init' first" >&2
-    exit 1
-fi
-
-# Find the script directory (handles being called from anywhere)
-SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-
-# Hooks to install
-HOOKS="pre-commit post-merge pre-push"
-
-echo "Installing bd git hooks..."
-
-for hook in $HOOKS; do
-    src="$SCRIPT_DIR/$hook"
-    dst=".git/hooks/$hook"
-    
-    if [ ! -f "$src" ]; then
-        echo "Warning: Hook $hook not found at $src" >&2
-        continue
-    fi
-    
-    # Backup existing hook if present
-    if [ -f "$dst" ]; then
-        backup="$dst.backup-$(date +%Y%m%d-%H%M%S)"
-        echo "  Backing up existing $hook to $backup"
-        mv "$dst" "$backup"
-    fi
-    
-    # Copy and make executable
-    cp "$src" "$dst"
-    chmod +x "$dst"
-    echo "  Installed $hook"
-done
-
-echo ""
-echo "✓ Git hooks installed successfully"
-echo ""
-echo "Hooks installed:"
-echo "  pre-commit  - Flushes pending bd changes to JSONL before commit"
-echo "  pre-push    - Blocks push if JSONL has uncommitted changes (bd-my64)"
-echo "  post-merge  - Imports updated JSONL after git pull/merge"
-echo ""
-echo "To uninstall, remove the hooks from .git/hooks/"