### What this PR does / why we need it?
Revert speedup image building and CI Installation related PRs
git revert 8835236181
git revert 64fba51275
git revert 263c2f8e8d
git revert 84b00695f8
### Does this PR introduce _any_ user-facing change?
### How was this patch tested?
- vLLM version: v0.16.0
- vLLM main:
15d76f74e2
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Signed-off-by: wjunLu <wjunlu217@gmail.com>