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diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FilteringFunctions/arm_lms_init_q31.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/FilteringFunctions/arm_lms_init_q31.c
deleted file mode 100644
index 58edb659b..000000000
--- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FilteringFunctions/arm_lms_init_q31.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/*-----------------------------------------------------------------------------    
-* Copyright (C) 2010 ARM Limited. All rights reserved.    
-*    
-* $Date:        15. February 2012  
-* $Revision: 	V1.1.0  
-*    
-* Project: 	    CMSIS DSP Library    
-* Title:        arm_lms_init_q31.c    
-*    
-* Description:  Q31 LMS filter initialization function.    
-*    
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*  
-* Version 1.1.0 2012/02/15 
-*    Updated with more optimizations, bug fixes and minor API changes.  
-*   
-* Version 1.0.10 2011/7/15  
-*    Big Endian support added and Merged M0 and M3/M4 Source code.   
-*    
-* Version 1.0.3 2010/11/29   
-*    Re-organized the CMSIS folders and updated documentation.    
-*     
-* Version 1.0.2 2010/11/11    
-*    Documentation updated.     
-*    
-* Version 1.0.1 2010/10/05     
-*    Production release and review comments incorporated.    
-*    
-* Version 1.0.0 2010/09/20     
-*    Production release and review comments incorporated    
-*    
-* Version 0.0.7  2010/06/10     
-*    Misra-C changes done    
-* ---------------------------------------------------------------------------*/
-
-#include "arm_math.h"
-
-/**    
- * @ingroup groupFilters    
- */
-
-/**    
- * @addtogroup LMS    
- * @{    
- */
-
-  /**    
-   * @brief Initialization function for Q31 LMS filter.    
-   * @param[in] *S points to an instance of the Q31 LMS filter structure.    
-   * @param[in] numTaps  number of filter coefficients.    
-   * @param[in] *pCoeffs points to coefficient buffer.    
-   * @param[in] *pState points to state buffer.    
-   * @param[in] mu step size that controls filter coefficient updates.    
-   * @param[in] blockSize number of samples to process.    
-   * @param[in] postShift bit shift applied to coefficients.    
-   * @return none.    
- *    
- * \par Description:    
- * <code>pCoeffs</code> points to the array of filter coefficients stored in time reversed order:    
- * <pre>    
- *    {b[numTaps-1], b[numTaps-2], b[N-2], ..., b[1], b[0]}    
- * </pre>    
- * The initial filter coefficients serve as a starting point for the adaptive filter.    
- * <code>pState</code> points to an array of length <code>numTaps+blockSize-1</code> samples,    
- * where <code>blockSize</code> is the number of input samples processed by each call to    
- * <code>arm_lms_q31()</code>.    
- */
-
-void arm_lms_init_q31(
-  arm_lms_instance_q31 * S,
-  uint16_t numTaps,
-  q31_t * pCoeffs,
-  q31_t * pState,
-  q31_t mu,
-  uint32_t blockSize,
-  uint32_t postShift)
-{
-  /* Assign filter taps */
-  S->numTaps = numTaps;
-
-  /* Assign coefficient pointer */
-  S->pCoeffs = pCoeffs;
-
-  /* Clear state buffer and size is always blockSize + numTaps - 1 */
-  memset(pState, 0, ((uint32_t) numTaps + (blockSize - 1u)) * sizeof(q31_t));
-
-  /* Assign state pointer */
-  S->pState = pState;
-
-  /* Assign Step size value */
-  S->mu = mu;
-
-  /* Assign postShift value to be applied */
-  S->postShift = postShift;
-
-}
-
-/**    
- * @} end of LMS group    
- */