Remove the resolve stale suggestions action. (#3999)

Still failing. The action doesn't correctly handle the `push` action.
e.g.:
https://github.com/carbon-language/carbon-lang/actions/runs/9272842686

Lacking a clear solution here, I suggest removing this.

.github/workflows/pre_commit_resolve.yaml

@@ -1,24 +0,0 @@
-# Part of the Carbon Language project, under the Apache License v2.0 with LLVM
-# Exceptions. See /LICENSE for license information.
-# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-
-name: 'Delete stale suggestions'
-
-on:
-  push:
-
-jobs:
-  delete-stale-suggestions:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Harden Runner
-        uses: step-security/harden-runner@f086349bfa2bd1361f7909c78558e816508cdc10 # v2.8.0
-        with:
-          egress-policy: audit
-
-      - name: Delete stale suggestions
-        uses: Ardiannn08/resolve-outdated-comment@3b3cf4b2651a84fac2d6a94c2aeca9ac7c05ac5f # v1.3
-        with:
-          token: ${{ secrets.CARBON_INFRA_BOT_FOR_REVIEWDOG }}
-          filter-user: 'CarbonInfraBot'
-          mode: 'delete'