Remove unused images.

PiperOrigin-RevId: 574962529

images/benchmarks/ab/Dockerfile

@@ -1,7 +0,0 @@
-FROM ubuntu:18.04
-
-RUN set -x \
-        && apt-get update \
-        && apt-get install -y \
-            apache2-utils \
-        && rm -rf /var/lib/apt/lists/*

images/benchmarks/mariadb/Dockerfile

@@ -1 +0,0 @@
-FROM mariadb:10.11.3-jammy

images/benchmarks/wordpress/Dockerfile

@@ -1 +0,0 @@
-FROM wordpress:6.2.0-php8.2-apache

images/gpu/pytorch/Dockerfile.x86_64

@@ -1,34 +0,0 @@
-FROM pytorch/pytorch:2.0.1-cuda11.7-cudnn8-devel
-
-RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y git wget \
-    libgl1-mesa-glx libglib2.0-0
-
-RUN git clone https://github.com/pytorch/benchmark.git \
-    && cd /workspace/benchmark \
-    && git reset --hard 6d84522ec83997beefa4bb6e5154453b5fc653f7
-
-WORKDIR /workspace/benchmark
-
-# For some reason, installing the suite's requirements.txt does not correctly
-# install "boto3", so install it explicitly.
-# Note that mobilenet_v2 does not have a requirements.txt file.
-RUN pip install boto3 numba matplotlib && pip install \
- -r requirements.txt \
- -r torchbenchmark/models/LearningToPaint/requirements.txt \
- -r torchbenchmark/models/attention_is_all_you_need_pytorch/requirements.txt \
- -r torchbenchmark/models/fastNLP_Bert/requirements.txt \
- -r torchbenchmark/models/hf_BigBird/requirements.txt \
- -r torchbenchmark/models/speech_transformer/requirements.txt \
- -r torchbenchmark/models/Background_Matting/requirements.txt
-
-# These benchmarks are chosen based on diversity of the type of model and their
-# profile with respect to using the GPU and moving data. For more context, see
-# this paper: https://arxiv.org/pdf/2304.14226.pdf
-RUN python install.py \
-    LearningToPaint \
-    attention_is_all_you_need_pytorch \
-    fastNLP_Bert \
-    hf_BigBird \
-    speech_transformer \
-    mobilenet_v2 \
-    Background_Matting