remove name from tool response

[yenif]

Why are these changes needed?

#1255

Related issue number

Closes #1255

Checks

• [ ] I've included any doc changes needed for https://microsoft.github.io/autogen/. See https://microsoft.github.io/autogen/docs/Contribute#documentation to build and test documentation locally.
• [ ] I've added tests (if relevant) corresponding to the changes introduced in this PR.
• [ ] I've made sure all auto checks have passed.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (bde2fc9) 32.10% compared to head (d6f2e2a) 51.20%.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1263       +/-   ##
===========================================
+ Coverage   32.10%   51.20%   +19.10%     
===========================================
  Files          32       32               
  Lines        4392     4394        +2     
  Branches     1024     1080       +56     
===========================================
+ Hits         1410     2250      +840     
+ Misses       2866     1941      -925     
- Partials      116      203       +87     

Flag	Coverage Δ
unittests	51.13% <100.00%> (+19.07%)	:arrow_up:

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[sonichi]

Thanks. Could you modify the test to address the test failures?

[qingyun-wu]

@yenif the openai test is failing: https://github.com/microsoft/autogen/actions/runs/7532202265/job/20511225188?pr=1263#step:7:1189 Could you take a look this? Thank you!