removed iris-grib dependency

[corinnebosley]

Checklist

• [x] Used a fork of the feedstock to propose changes
• [x] Bumped the build number (if the version is unchanged)
• [ ] ~Reset the build number to 0 (if the version changed)~
• [x] Re-rendered with the latest conda-smithy
• [x] Ensured the license file is being packaged.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[corinnebosley]

@conda-forge-admin, please rerender

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-webservice.

I rerendered the feedstock and it seems to be already up-to-date.

[corinnebosley]

@bjlittle @ocefpaf I've removed the iris-grib dependency because it shouldn't be in there, and it will cause problems if it isn't already.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[bjlittle]

:+1: Awesome, thanks @corinnebosley