Update analyzersilence.h

Yet more code style issues (Space at end of line.)

src/analyzer/analyzersilence.h

@@ -34,13 +34,13 @@ class AnalyzerSilence : public Analyzer {
             UserSettings* pConfig);
     static void setupOutroCue(Track* pTrack, mixxx::audio::FramePos lastSoundPosition);
 
-    /// returns the index of the first sample in the buffer that is above the 
+    /// returns the index of the first sample in the buffer that is above the
     /// fade out threshold (e.g. -20 dB) or samples.size() if no sample is found
     /// TODO CHeck if 'samples.size()' is actually meaningful in this context.
     static SINT findLastFadeInChunk(std::span<const CSAMPLE> samples);
 
-    /// returns the index of the last sample in the buffer that is above that is 
-    /// above the fade out threshold (e.g. -20 dB) or samples.size() if no 
+    /// returns the index of the last sample in the buffer that is above that is
+    /// above the fade out threshold (e.g. -20 dB) or samples.size() if no
     /// sample is found
     static SINT findFirstFadeOutChunk(std::span<const CSAMPLE> samples);