DOC: Remove lingering Ultrasound dependency

tbirdso · tbirdso · commit 4b95bcfc2c18 · 2021-11-16T12:36:14.000-05:00
diff --git a/Modules/Filtering/FFT/include/itkFFTWCommonExtended.h b/Modules/Filtering/FFT/include/itkFFTWCommonExtended.h
@@ -38,7 +38,8 @@ namespace fftw
  * \class Interface
  * \brief Wrapper for FFTW API
  *
- * \ingroup Ultrasound
+ * \ingroup ITKFFT
+ * \ingroup FourierTransform
  */
 template <typename TPixel>
 class ComplexToComplexProxy
