Don't skip falsing on non-foldable devices

In ag/20887962 we introduced a way to skip checking for false touches, when a foldable device is unfolded. The problem is that this CL also disabled the falsing checks on non-foldable devices.

Fixes: 269594643
Test: atest BrightLineClassifierTest BrightLineFalsingManagerTest FalsingDataProviderTest
Test: enable FalsingManager logs, check if falsing is skipped on foldable and non-foldable devices.
Change-Id: I99ee7b717f0a417065655ccc3a0602839f44e40a