Revert "fix build"

This reverts commit f8b7a6a5060e732d8ec7fd9d5748aa18aa593a58.
Revert "fix derp"

This reverts commit 00e1c2ae3da43663ecac777ad303832cb9f7678b.
Revert "SmoothProgressBar: Accelerate and Interpolator [2/2]"

This reverts commit 771fa27aa8f83d2f32852ebccb04180c61d30c65.