Bug 1460206 - Let the new Android fling physics ride the trains. r=kats

MozReview-Commit-ID: 9DSIDzqKnZX

--HG--
extra : rebase_source : a42e999a42620ae396d15aec787746e61390d965

modules/libpref/init/all.js

@@ -622,11 +622,7 @@ pref("layers.geometry.d3d11.enabled", true);
 pref("apz.allow_checkerboarding", true);
 pref("apz.allow_immediate_handoff", true);
 pref("apz.allow_zooming", false);
-#ifdef NIGHTLY_BUILD
 pref("apz.android.chrome_fling_physics.enabled", true);
-#else
-pref("apz.android.chrome_fling_physics.enabled", false);
-#endif
 pref("apz.android.chrome_fling_physics.friction", "0.015");
 pref("apz.android.chrome_fling_physics.inflexion", "0.35");
 pref("apz.android.chrome_fling_physics.stop_threshold", "0.1");