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diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/StatisticsFunctions/arm_rms_f32.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/StatisticsFunctions/arm_rms_f32.c
deleted file mode 100644
index 573896ed4..000000000
--- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/StatisticsFunctions/arm_rms_f32.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/* ----------------------------------------------------------------------    
-* Copyright (C) 2010 ARM Limited. All rights reserved.    
-*    
-* $Date:        15. February 2012  
-* $Revision: 	V1.1.0  
-*    
-* Project: 	    CMSIS DSP Library    
-* Title:		arm_rms_f32.c    
-*    
-* Description:	Root mean square value of an array of F32 type    
-*    
-* 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.    
-* ---------------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**    
- * @ingroup groupStats    
- */
-
-/**    
- * @defgroup RMS Root mean square (RMS)    
- *    
- *     
- * Calculates the Root Mean Sqaure of the elements in the input vector.    
- * The underlying algorithm is used:    
- *    
- * <pre>    
- * 	Result = sqrt(((pSrc[0] * pSrc[0] + pSrc[1] * pSrc[1] + ... + pSrc[blockSize-1] * pSrc[blockSize-1]) / blockSize));    
- * </pre>    
- *   
- * There are separate functions for floating point, Q31, and Q15 data types.     
- */
-
-/**    
- * @addtogroup RMS    
- * @{    
- */
-
-
-/**    
- * @brief Root Mean Square of the elements of a floating-point vector.    
- * @param[in]       *pSrc points to the input vector    
- * @param[in]       blockSize length of the input vector    
- * @param[out]      *pResult rms value returned here    
- * @return none.    
- *    
- */
-
-void arm_rms_f32(
-  float32_t * pSrc,
-  uint32_t blockSize,
-  float32_t * pResult)
-{
-  float32_t sum = 0.0f;                          /* Accumulator */
-  float32_t in;                                  /* Tempoprary variable to store input value */
-  uint32_t blkCnt;                               /* loop counter */
-
-#ifndef ARM_MATH_CM0
-
-  /* Run the below code for Cortex-M4 and Cortex-M3 */
-
-  /* loop Unrolling */
-  blkCnt = blockSize >> 2u;
-
-  /* First part of the processing with loop unrolling.  Compute 4 outputs at a time.    
-   ** a second loop below computes the remaining 1 to 3 samples. */
-  while(blkCnt > 0u)
-  {
-    /* C = A[0] * A[0] + A[1] * A[1] + A[2] * A[2] + ... + A[blockSize-1] * A[blockSize-1] */
-    /* Compute sum of the squares and then store the result in a temporary variable, sum  */
-    in = *pSrc++;
-    sum += in * in;
-    in = *pSrc++;
-    sum += in * in;
-    in = *pSrc++;
-    sum += in * in;
-    in = *pSrc++;
-    sum += in * in;
-
-    /* Decrement the loop counter */
-    blkCnt--;
-  }
-
-  /* If the blockSize is not a multiple of 4, compute any remaining output samples here.    
-   ** No loop unrolling is used. */
-  blkCnt = blockSize % 0x4u;
-
-#else
-
-  /* Run the below code for Cortex-M0 */
-
-  /* Loop over blockSize number of values */
-  blkCnt = blockSize;
-
-#endif /* #ifndef ARM_MATH_CM0 */
-
-  while(blkCnt > 0u)
-  {
-    /* C = A[0] * A[0] + A[1] * A[1] + A[2] * A[2] + ... + A[blockSize-1] * A[blockSize-1] */
-    /* Compute sum of the squares and then store the results in a temporary variable, sum  */
-    in = *pSrc++;
-    sum += in * in;
-
-    /* Decrement the loop counter */
-    blkCnt--;
-  }
-
-  /* Compute Rms and store the result in the destination */
-  arm_sqrt_f32(sum / (float32_t) blockSize, pResult);
-}
-
-/**    
- * @} end of RMS group    
- */