Remove duplicate typedefs

[ted-miller]

There are three typedefs that got duplicated in executor_handle.h. It looks like a copy/paste accident.

I'm using a really old compiler, and it generates an error for the redefinition. I'm guessing it's not an error with modern compilers, but it's still nice to remove unnecessary stuff from the header.

[ted-miller]

I followed these instructions to add the 'signed off by' field.

To add your Signed-off-by line to every commit in this branch:

• Ensure you have a local copy of your branch by checking out the pull request locally via command line.
• In your local branch, run: git rebase HEAD~1 --signoff
• Force push your changes to overwrite the branch: git push --force-with-lease origin master

[pablogs9]

LGTM, please @JanStaschulat merge if you are ok

[pablogs9]

@mergify backport foxy galactic

[mergify]

backport foxy galactic

🟠 Waiting for conditions to match

• merged [:pushpin: backport requirement]

Hey, I reacted but my real name is @Mergifyio

[JanStaschulat]

Interesting that there are duplicates. Thanks for your PR.

[mergify]

backport foxy galactic

✅ Backports have been created

• #250 Remove duplicate typedefs (backport #249) has been created for branch foxy
• #251 Remove duplicate typedefs (backport #249) has been created for branch galactic