[llvm] [Github][CI] Remove premerge container (PR #123483)

[Aiden Grossman via llvm-commits]

https://github.com/boomanaiden154 created https://github.com/llvm/llvm-project/pull/123483

This patch removes the container from the premerge job. We are moving away from the kubernetes executor back to executing everything in the same container due to reliability issues. This patch updates everything in the premerge job to work.

>From 53392658119e7aea59963b079319b27ed024c33c Mon Sep 17 00:00:00 2001
From: Aiden Grossman <aidengrossman at google.com>
Date: Sat, 18 Jan 2025 22:17:05 +0000
Subject: [PATCH] [Github][CI] Remove premerge container

This patch removes the container from the premerge job. We are moving away
from the kubernetes executor back to executing everything in the same
container due to reliability issues. This patch updates everything in the
premerge job to work.
---
 .github/workflows/premerge.yaml | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/.github/workflows/premerge.yaml b/.github/workflows/premerge.yaml
index 261dc8bbb97e0a..ddef6206bcae89 100644
--- a/.github/workflows/premerge.yaml
+++ b/.github/workflows/premerge.yaml
@@ -18,11 +18,6 @@ jobs:
     concurrency:
       group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
       cancel-in-progress: true
-    container:
-      image: ghcr.io/llvm/ci-ubuntu-22.04:latest
-    defaults:
-      run:
-        shell: bash
     steps:
       - name: Checkout LLVM
         uses: actions/checkout at v4