[lib][fixed_point] remove the old unused debug routines

Author: travisg

lib/fixed_point/include/lib/fixed_point.h

@@ -11,18 +11,12 @@
 #include <stddef.h>
 #include <stdint.h>
 
-#ifndef DEBUG_FIXED_POINT
-#define DEBUG_FIXED_POINT 0
-#endif
-
 struct fp_32_64 {
     uint32_t l0;  /* unshifted value */
     uint32_t l32; /* value shifted left 32 bits (or bit -1 to -32) */
     uint32_t l64; /* value shifted left 64 bits (or bit -33 to -64) */
 };
 
-#include "fixed_point_debug.h"
-
 static inline void
 fp_32_64_div_32_32(struct fp_32_64 *result, uint32_t dividend, uint32_t divisor) {
     uint64_t tmp;
@@ -76,7 +70,6 @@ fp_32_64_div_32_64(struct fp_32_64 *result, uint32_t dividend, uint64_t divisor)
 static inline uint64_t
 mul_u32_u32(uint32_t a, uint32_t b, int a_shift, int b_shift) {
     uint64_t ret = (uint64_t)a * b;
-    debug_mul_u32_u32(a, b, a_shift, b_shift, ret);
     return ret;
 }
 
@@ -97,8 +90,6 @@ u64_mul_u32_fp32_64(uint32_t a, struct fp_32_64 b) {
     res_l32_32 = res_l32;
     ret = res_0 + (res_l32_32 >> 31); /* Round to nearest integer */
 
-    debug_u64_mul_u32_fp32_64(a, b, res_0, res_l32_32, ret);
-
     return ret;
 }
 
@@ -117,8 +108,6 @@ u32_mul_u64_fp32_64(uint64_t a, struct fp_32_64 b) {
     res_l32 += mul_u32_u32(a_0, b.l64, 0, -64) >> 32;  /* Improve rounding accuracy */
     ret = (res_l32 >> 32) + ((uint32_t)res_l32 >> 31); /* Round to nearest integer */
 
-    debug_u32_mul_u64_fp32_64(a, b, res_l32, ret);
-
     return ret;
 }
 
@@ -150,8 +139,6 @@ u64_mul_u64_fp32_64(uint64_t a, struct fp_32_64 b) {
     res_l32_32 = res_l32;
     ret = res_0 + (res_l32_32 >> 31); /* Round to nearest integer */
 
-    debug_u64_mul_u64_fp32_64(a, b, res_0, res_l32_32, ret);
-
     return ret;
 }