Scrap the relative gain reduction idea

This looks super confusing.

plugins/spectral_compressor/CHANGELOG.md

@@ -12,8 +12,7 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 - Added a basic analyzer that visualizes the target curve, the spectral envelope
   followers and gain reduction. The current version will be expanded a bit in
-  the future to show this information relative to the threshold target curve,
-  with some tooltips for more information.
+  the future with some tooltips and labels to show more information.
 
 ### Changed
 

plugins/spectral_compressor/src/editor/analyzer.rs

@@ -351,7 +351,6 @@ fn draw_gain_reduction(
         // the way to the bottom of the spectrum analyzer. 40 dB of additional gain causes
         // the bar to be drawn from the center all the way to the top of the graph.
         // NOTE: Y-coordinates go from top to bottom, hence the minus
-        // TODO: The y-position should be relative to the target curve
         let t_y = ((-gain_difference_db + 40.0) / 80.0).clamp(0.0, 1.0);
 
         path.move_to(bounds.x + (bounds.w * t_start), bounds.y + (bounds.h * 0.5));