fix torch horovod: explicitly does not need tensorflow

[jperez999]

the install is requiring Tensorflow now. It must be omitted according to https://github.com/horovod/horovod/blob/master/docs/install.rst#tensorflow.

[nvidia-merlin-bot]

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GitHub pull request #206 of commit fd8259afe2a19f0c2d47a39c55ca1b0937ac5e11, no merge conflicts.
Running as SYSTEM
Setting status of fd8259afe2a19f0c2d47a39c55ca1b0937ac5e11 to PENDING with url https://10.20.13.93:8080/job/merlin_merlin/38/console and message: 'Pending'
Using context: Jenkins
Building on master in workspace /var/jenkins_home/workspace/merlin_merlin
using credential systems-login
 > git rev-parse --is-inside-work-tree # timeout=10
Fetching changes from the remote Git repository
 > git config remote.origin.url https://github.com/NVIDIA-Merlin/Merlin # timeout=10
Fetching upstream changes from https://github.com/NVIDIA-Merlin/Merlin
 > git --version # timeout=10
using GIT_ASKPASS to set credentials login for merlin-systems
 > git fetch --tags --force --progress -- https://github.com/NVIDIA-Merlin/Merlin +refs/pull/206/*:refs/remotes/origin/pr/206/* # timeout=10
 > git rev-parse fd8259afe2a19f0c2d47a39c55ca1b0937ac5e11^{commit} # timeout=10
Checking out Revision fd8259afe2a19f0c2d47a39c55ca1b0937ac5e11 (detached)
 > git config core.sparsecheckout # timeout=10
 > git checkout -f fd8259afe2a19f0c2d47a39c55ca1b0937ac5e11 # timeout=10
Commit message: "fix torch horovod explicit do not need tensorflow"
 > git rev-list --no-walk efd6fe34c93fed1de1e7c754dbbabf430b98ef27 # timeout=10
[merlin_merlin] $ /bin/bash /tmp/jenkins6581413910975784817.sh
============================= test session starts ==============================
platform linux -- Python 3.8.10, pytest-7.1.1, pluggy-1.0.0
rootdir: /var/jenkins_home/workspace/merlin_merlin/merlin
plugins: xdist-2.5.0, forked-1.4.0, cov-3.0.0
collected 1 item
tests/unit/test_version.py .                                             [100%]
============================== 1 passed in 0.01s ===============================

Performing Post build task...

Match found for : : True

Logical operation result is TRUE

Running script  : #!/bin/bash

cd /var/jenkins_home/

CUDA_VISIBLE_DEVICES=1 python test_res_push.py "https://github.com/gitapi/repos/NVIDIA-Merlin/Merlin/issues/$ghprbPullId/comments" "/var/jenkins_home/jobs/$JOB_NAME/builds/$BUILD_NUMBER/log"

[merlin_merlin] $ /bin/bash /tmp/jenkins6209801380566426992.sh

[github-actions]

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https://nvidia-merlin.github.io/Merlin/review/pr-206