Updated Histogram readme again

[jkinsky]

Existing Sample Changes

Description

Removed FPGA hardware from optimized for table.

Fixes Issue#

External Dependencies

N/A

Type of change

Please delete options that are not relevant. Add a 'X' to the one that is applicable.

• [x] Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• [x] VSCode

Delete this line and everything below if this is not a PR for a new code sample

Delete this line and all above it if this PR is for a new code sample

Adding a New Sample(s)

Description

Please include a description of the sample

Checklist

Administrative

• [ ] Review sample design with the appropriate Domain Expert: <insert Name Here>
• [ ] If you have any new dependencies/binaries, inform the oneAPI Code Samples Project Manager

Code Development

• [ ] Implement coding guidelines and ensure code quality. see wiki for details
• [ ] Adhere to readme template
• [ ] Enforce format via clang-format config file
• [ ] Adhere to sample.json specification. https://github.com/oneapi-src/oneAPI-samples/wiki/sample-json-specification
• [ ] Ensure/create CI test configurations for sample (ciTests field) https://github.com/oneapi-src/oneAPI-samples/wiki/sample-json-ci-test-object
• [ ] Run jsonlint on sample.json to verify json syntax. www.jsonlint.com

Security and Legal

• [ ] OSPDT Approval (see Project Manager for assistance)
• [ ] Compile using the following compiler flags and fix any warnings, the falgs are: "/Wall -Wformat-security -Werror=format-security"
• [ ] Bandit Scans (Python only)
• [ ] Virus scan

Review

• [ ] Review DPC++ code with Paul Peterseon. (GitHub User: pmpeter1)
• [ ] Review readme with Tom Lenth(@tomlenth) and/or Project Manager
• [ ] Tested using Dev Cloud when applicable

[jkinsky]

@ishaghosh27 - please review the updated file.