Remove "Adjust in smaller steps" from Diffusion

[Nancy-Salpepi]

Test device MacBook Air M1 chip

Operating System 14.5

Browser Safari 17.5

Problem description For https://github.com/phetsims/qa/issues/1123 and https://github.com/phetsims/qa/issues/1125, since the step size is specific for the particle properties (ex. # particles, radius, mass, and temperature) there are no smaller step sizes for this screen/sim.

Perhaps we should remove the "Adjust in smaller steps" from the keyboard dialog.

Visuals

[pixelzoom]

It looks like there is an includeSmallerStepsRow option available for this, so no common-code changes would be needed. But it would require a patch and another RC spot-check for all 3 sims. Unless other problems are found in 1.1.0-rc.2, my opinion is that it's not worth the cost, because keyboard-help dialogs have bigger general problems. @arouinfar your thoughts?

[pixelzoom]

@arouinfar and I discussed. I fixed in the above commit, will cherry-pick next. We don't feel this is worthy of QA's time, and the QA Pipeline overfloweth. If no other problems are found, I'll publish 1.1.0-rc.3 and have @arouinfar verify, then publish production.

[pixelzoom]

@arouinfar please verify in:

• https://phet-dev.colorado.edu/html/gas-properties/1.1.0-rc.3/phet/gas-properties_all_phet.html
• https://phet-dev.colorado.edu/html/diffusion/1.1.0-rc.3/phet/diffusion_all_phet.html

Close if OK.

[arouinfar]

Looks good in rc.3 for both sims, thanks @pixelzoom. Closing.