Always set FTZ instead of gating it behind a flag

After a quick round of testing it seems like REAPER doesn't always
enable this on the audio thread, but Bitwig, Ardour, Carla and Renoise
do. So it should be safe to just get rid of the option and to leave this
enabled all the time.

CHANGELOG.md

@@ -10,6 +10,10 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ### Added
 
+- We now always force the CPU's flush-to-zero flag to be set when processing
+  audio. Most plugins will already do this themselves, but plugins like _Kush
+  Audio REDDI_ and _Expressive E Noisy_ that don't will otherwise suffer from
+  extreme DSP usage increases when processing almost silent audio.
 - Added a new [compatibility
   option](https://github.com/robbert-vdh/yabridge#compatibility-options) to hide
   the name of the DAW you're using for a plugin. This can be useful with plugins
@@ -48,7 +52,6 @@ Versioning](https://semver.org/spec/v2.0.0.html).
   plugins. We now explicitly reparent the window to back the root window first
   before deferring the window closing. This should work around the issue, while
   still keeping editor closing nice and snappy.
-- Fixed the Wine version detection when using a custom `WINELOADER`.
 - _PSPaudioware InifniStrip_ would fail to initialize because the plugin expects
   the host to always be using Microsoft COM and it won't initialize it by
   itself. InfiniStrip loads as expected now.
@@ -56,6 +59,9 @@ Versioning](https://semver.org/spec/v2.0.0.html).
   fix, MIDI events are now deallocated later then when they normally would have
   to be.
 - Fixed _UVI Plugsound Free_ crashing during initialization.
+- Fixed extreme DSP usage increases in _Kush Audio REDDI_ and _Expressive E
+  Noisy_ caused by denormals.
+- Fixed the Wine version detection when using a custom `WINELOADER`.
 - Fixed the `cache_time_info` `yabridge.toml` option also affecting the results
   of other host callbacks during audio processing.