Remove expression API for non-dds properties

[tobrun]

This PR fixes the issue shown in #11790. We were generating expression APIs for all different style/paint properties while we should only do this when a property is data driven.

[tobrun]

The build is failing of heatmap related properties not being available (not generating the expression API for it). Looking at the style spec it seems that we haven't updated the properties to be datadriven for gl-js, iOS and Android (cc @anandthakker @1ec5).

[anandthakker]

Hm, I'm not sure if this is the right fix, because for non-data-driven properties, zoom-only expressions are still allowed. (Note that there's no type-level enforcement for this: the validity of an expression for a given style property can only be checked at runtime.)

[tobrun]

Hm, I'm not sure if this is the right fix, because for non-data-driven properties, zoom-only expressions are still allowed. (Note that there's no type-level enforcement for this: the validity of an expression for a given style property can only be checked at runtime.)

Let's move forward with a different approach that handles the case in #11790 more gracefully.