fix(ha/deploy): remove _patch_targetctl — iscsi-target.nix now correct

The _patch_targetctl runtime dropin was a workaround for the wrong targetctl
binary path in the original iscsi-target.nix (used pkgs.targetcli-fb, but
targetctl is in rtslib-fb's python3 env).  The module is now fixed to use
\${python3}/bin/targetctl, so new VM images have the correct ExecStart/ExecStop
baked in and the patch finds nothing — failing with exit 1 and killing the deploy.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HaH1cSGvhogRP5ExoF6nD8

scripts/ha/deploy.sh

@@ -355,58 +355,6 @@ if ! $SKIP_CLUSTER_INIT; then
       "sudo mkdir -p /root/.ssh && sudo cp /tmp/cluster-init-key /root/.ssh/cluster-init-key && \
        sudo chmod 600 /root/.ssh/cluster-init-key && rm -f /tmp/cluster-init-key"
 
-    # Fix targetctl.service on both nodes: the iscsi-target.nix module bakes
-    # pkgs.targetcli-fb for the targetctl binary, but targetctl is actually in
-    # rtslib-fb (a different store path).  Apply a runtime dropin that corrects
-    # both ExecStart and ExecStop before Pacemaker ever touches the service.
-    # The fixed iscsi-target.nix module will make this redundant on next rebuild.
-    logn "Patching targetctl.service on both nodes..."
-    _patch_targetctl() {
-      local ip="$1"
-      ssh -i ~/.ssh/id_ed25519 -o StrictHostKeyChecking=no "${HA_USER}@${ip}" sudo bash << 'PATCH'
-set -euo pipefail
-TC=$(find /nix/store -maxdepth 4 -path '*/python3*env/bin/targetctl' 2>/dev/null | head -1)
-PY=$(find /nix/store -maxdepth 4 -path '*/python3*env/bin/python3' -name 'python3' 2>/dev/null | \
-  while IFS= read -r p; do "$p" -c "import rtslib_fb" 2>/dev/null && echo "$p" && break; done | head -1)
-[[ -n "$TC" && -n "$PY" ]] || { echo "targetctl or python3+rtslib_fb not found"; exit 1; }
-# Write stop script that saves LIO config then tears down kernel state
-"$PY" - "$TC" "$PY" << 'PYEOF'
-import sys, os, stat
-tc, py = sys.argv[1], sys.argv[2]
-script = f"""#!{py}
-import subprocess, sys, rtslib_fb
-root = rtslib_fb.RTSRoot()
-targets = list(root.targets)
-if targets:
-    r = subprocess.run(["{tc}", "save", "/etc/target/saveconfig.json"], capture_output=True)
-    print(f"saved {{len(targets)}} target(s); rc={{r.returncode}}")
-else:
-    print("no active LIO targets")
-for t in targets:
-    try:
-        for tpg in list(t.tpgs): tpg.enable = False
-        t.delete()
-    except Exception as e: print(f"warn: {{e}}", file=sys.stderr)
-for so in list(root.storage_objects):
-    try: so.delete()
-    except Exception as e: print(f"warn: {{e}}", file=sys.stderr)
-print("LIO kernel target cleared")
-"""
-path = "/run/ha-targetctl-stop.py"
-with open(path, "w") as f: f.write(script)
-os.chmod(path, 0o755)
-print(f"wrote {path}")
-PYEOF
-mkdir -p /run/systemd/system/targetctl.service.d
-printf '[Service]\nExecStart=\nExecStart=%s restore /etc/target/saveconfig.json\nExecStop=\nExecStop=/run/ha-targetctl-stop.py\n' \
-  "$TC" > /run/systemd/system/targetctl.service.d/fix-exec.conf
-systemctl daemon-reload
-echo "patched on $(hostname)"
-PATCH
-    }
-    _patch_targetctl "${NODE1_IP}"
-    _patch_targetctl "${NODE2_IP}"
-
     logn "Uploading cluster-init.sh to ${NODE1_HOST}..."
     scp -i ~/.ssh/id_ed25519 -o StrictHostKeyChecking=no \
       "$CLUSTER_INIT" "${HA_USER}@${NODE1_IP}:/tmp/cluster-init.sh"