diff --git a/utils/src/MurmurHash3.cpp b/utils/src/MurmurHash3.cpp
index b3bc67064..91975d660 100644
--- a/utils/src/MurmurHash3.cpp
+++ b/utils/src/MurmurHash3.cpp
@@ -21,9 +21,6 @@
 #include <stdlib.h>
 
 #define ROTL32(x, y) _rotl(x, y)
-#define ROTL64(x, y) _rotl64(x, y)
-
-#define BIG_CONSTANT(x) (x)
 
 // Other compilers
 
@@ -35,14 +32,7 @@ inline uint32_t rotl32(uint32_t x, int8_t r) {
   return (x << r) | (x >> (32 - r));
 }
 
-inline uint64_t rotl64(uint64_t x, int8_t r) {
-  return (x << r) | (x >> (64 - r));
-}
-
 #define ROTL32(x, y) rotl32(x, y)
-#define ROTL64(x, y) rotl64(x, y)
-
-#define BIG_CONSTANT(x) (x##LLU)
 
 #endif // !defined(_MSC_VER)
 
@@ -54,10 +44,6 @@ FORCE_INLINE uint32_t getblock32(const uint32_t* p, int i) {
   return p[i];
 }
 
-FORCE_INLINE uint64_t getblock64(const uint64_t* p, int i) {
-  return p[i];
-}
-
 //-----------------------------------------------------------------------------
 // Finalization mix - force all bits of a hash block to avalanche
 
@@ -71,18 +57,6 @@ FORCE_INLINE uint32_t fmix32(uint32_t h) {
   return h;
 }
 
-//----------
-
-FORCE_INLINE uint64_t fmix64(uint64_t k) {
-  k ^= k >> 33;
-  k *= BIG_CONSTANT(0xff51afd7ed558ccd);
-  k ^= k >> 33;
-  k *= BIG_CONSTANT(0xc4ceb9fe1a85ec53);
-  k ^= k >> 33;
-
-  return k;
-}
-
 //-----------------------------------------------------------------------------
 
 void MurmurHash3_x86_32(const void* key, int len, uint32_t seed, void* out) {
@@ -142,301 +116,3 @@ void MurmurHash3_x86_32(const void* key, int len, uint32_t seed, void* out) {
 
   *(uint32_t*)out = h1;
 }
-
-//-----------------------------------------------------------------------------
-
-void MurmurHash3_x86_128(const void* key, const int len, uint32_t seed, void* out) {
-  const auto data = (const uint8_t*)key;
-  const int nblocks = len / 16;
-
-  uint32_t h1 = seed;
-  uint32_t h2 = seed;
-  uint32_t h3 = seed;
-  uint32_t h4 = seed;
-
-  const uint32_t c1 = 0x239b961b;
-  const uint32_t c2 = 0xab0e9789;
-  const uint32_t c3 = 0x38b34ae5;
-  const uint32_t c4 = 0xa1e38b93;
-
-  //----------
-  // body
-
-  const auto blocks = (const uint32_t*)(data + nblocks * 16);
-
-  for (int i = -nblocks; i; i++) {
-    uint32_t k1 = getblock32(blocks, i * 4 + 0);
-    uint32_t k2 = getblock32(blocks, i * 4 + 1);
-    uint32_t k3 = getblock32(blocks, i * 4 + 2);
-    uint32_t k4 = getblock32(blocks, i * 4 + 3);
-
-    k1 *= c1;
-    k1 = ROTL32(k1, 15);
-    k1 *= c2;
-    h1 ^= k1;
-
-    h1 = ROTL32(h1, 19);
-    h1 += h2;
-    h1 = h1 * 5 + 0x561ccd1b;
-
-    k2 *= c2;
-    k2 = ROTL32(k2, 16);
-    k2 *= c3;
-    h2 ^= k2;
-
-    h2 = ROTL32(h2, 17);
-    h2 += h3;
-    h2 = h2 * 5 + 0x0bcaa747;
-
-    k3 *= c3;
-    k3 = ROTL32(k3, 17);
-    k3 *= c4;
-    h3 ^= k3;
-
-    h3 = ROTL32(h3, 15);
-    h3 += h4;
-    h3 = h3 * 5 + 0x96cd1c35;
-
-    k4 *= c4;
-    k4 = ROTL32(k4, 18);
-    k4 *= c1;
-    h4 ^= k4;
-
-    h4 = ROTL32(h4, 13);
-    h4 += h1;
-    h4 = h4 * 5 + 0x32ac3b17;
-  }
-
-  //----------
-  // tail
-
-  const auto tail = (const uint8_t*)(data + nblocks * 16);
-
-  uint32_t k1 = 0;
-  uint32_t k2 = 0;
-  uint32_t k3 = 0;
-  uint32_t k4 = 0;
-
-  switch (len & 15) {
-  case 15:
-    k4 ^= tail[14] << 16;
-    [[fallthrough]];
-  case 14:
-    k4 ^= tail[13] << 8;
-    [[fallthrough]];
-  case 13:
-    k4 ^= tail[12] << 0;
-    k4 *= c4;
-    k4 = ROTL32(k4, 18);
-    k4 *= c1;
-    h4 ^= k4;
-    [[fallthrough]];
-
-  case 12:
-    k3 ^= tail[11] << 24;
-    [[fallthrough]];
-  case 11:
-    k3 ^= tail[10] << 16;
-    [[fallthrough]];
-  case 10:
-    k3 ^= tail[9] << 8;
-    [[fallthrough]];
-  case 9:
-    k3 ^= tail[8] << 0;
-    k3 *= c3;
-    k3 = ROTL32(k3, 17);
-    k3 *= c4;
-    h3 ^= k3;
-    [[fallthrough]];
-
-  case 8:
-    k2 ^= tail[7] << 24;
-    [[fallthrough]];
-  case 7:
-    k2 ^= tail[6] << 16;
-    [[fallthrough]];
-  case 6:
-    k2 ^= tail[5] << 8;
-    [[fallthrough]];
-  case 5:
-    k2 ^= tail[4] << 0;
-    k2 *= c2;
-    k2 = ROTL32(k2, 16);
-    k2 *= c3;
-    h2 ^= k2;
-    [[fallthrough]];
-
-  case 4:
-    k1 ^= tail[3] << 24;
-    [[fallthrough]];
-  case 3:
-    k1 ^= tail[2] << 16;
-    [[fallthrough]];
-  case 2:
-    k1 ^= tail[1] << 8;
-    [[fallthrough]];
-  case 1:
-    k1 ^= tail[0] << 0;
-    k1 *= c1;
-    k1 = ROTL32(k1, 15);
-    k1 *= c2;
-    h1 ^= k1;
-  };
-
-  //----------
-  // finalization
-
-  h1 ^= len;
-  h2 ^= len;
-  h3 ^= len;
-  h4 ^= len;
-
-  h1 += h2;
-  h1 += h3;
-  h1 += h4;
-  h2 += h1;
-  h3 += h1;
-  h4 += h1;
-
-  h1 = fmix32(h1);
-  h2 = fmix32(h2);
-  h3 = fmix32(h3);
-  h4 = fmix32(h4);
-
-  h1 += h2;
-  h1 += h3;
-  h1 += h4;
-  h2 += h1;
-  h3 += h1;
-  h4 += h1;
-
-  ((uint32_t*)out)[0] = h1;
-  ((uint32_t*)out)[1] = h2;
-  ((uint32_t*)out)[2] = h3;
-  ((uint32_t*)out)[3] = h4;
-}
-
-//-----------------------------------------------------------------------------
-
-void MurmurHash3_x64_128(const void* key, const int len, const uint32_t seed, void* out) {
-  const auto data = (const uint8_t*)key;
-  const int nblocks = len / 16;
-
-  uint64_t h1 = seed;
-  uint64_t h2 = seed;
-
-  const uint64_t c1 = BIG_CONSTANT(0x87c37b91114253d5);
-  const uint64_t c2 = BIG_CONSTANT(0x4cf5ad432745937f);
-
-  //----------
-  // body
-
-  const auto blocks = (const uint64_t*)(data);
-
-  for (int i = 0; i < nblocks; i++) {
-    uint64_t k1 = getblock64(blocks, i * 2 + 0);
-    uint64_t k2 = getblock64(blocks, i * 2 + 1);
-
-    k1 *= c1;
-    k1 = ROTL64(k1, 31);
-    k1 *= c2;
-    h1 ^= k1;
-
-    h1 = ROTL64(h1, 27);
-    h1 += h2;
-    h1 = h1 * 5 + 0x52dce729;
-
-    k2 *= c2;
-    k2 = ROTL64(k2, 33);
-    k2 *= c1;
-    h2 ^= k2;
-
-    h2 = ROTL64(h2, 31);
-    h2 += h1;
-    h2 = h2 * 5 + 0x38495ab5;
-  }
-
-  //----------
-  // tail
-
-  const auto tail = (const uint8_t*)(data + nblocks * 16);
-
-  uint64_t k1 = 0;
-  uint64_t k2 = 0;
-
-  switch (len & 15) {
-  case 15:
-    k2 ^= ((uint64_t)tail[14]) << 48;
-    [[fallthrough]];
-  case 14:
-    k2 ^= ((uint64_t)tail[13]) << 40;
-    [[fallthrough]];
-  case 13:
-    k2 ^= ((uint64_t)tail[12]) << 32;
-    [[fallthrough]];
-  case 12:
-    k2 ^= ((uint64_t)tail[11]) << 24;
-    [[fallthrough]];
-  case 11:
-    k2 ^= ((uint64_t)tail[10]) << 16;
-    [[fallthrough]];
-  case 10:
-    k2 ^= ((uint64_t)tail[9]) << 8;
-    [[fallthrough]];
-  case 9:
-    k2 ^= ((uint64_t)tail[8]) << 0;
-    k2 *= c2;
-    k2 = ROTL64(k2, 33);
-    k2 *= c1;
-    h2 ^= k2;
-    [[fallthrough]];
-
-  case 8:
-    k1 ^= ((uint64_t)tail[7]) << 56;
-    [[fallthrough]];
-  case 7:
-    k1 ^= ((uint64_t)tail[6]) << 48;
-    [[fallthrough]];
-  case 6:
-    k1 ^= ((uint64_t)tail[5]) << 40;
-    [[fallthrough]];
-  case 5:
-    k1 ^= ((uint64_t)tail[4]) << 32;
-    [[fallthrough]];
-  case 4:
-    k1 ^= ((uint64_t)tail[3]) << 24;
-    [[fallthrough]];
-  case 3:
-    k1 ^= ((uint64_t)tail[2]) << 16;
-    [[fallthrough]];
-  case 2:
-    k1 ^= ((uint64_t)tail[1]) << 8;
-    [[fallthrough]];
-  case 1:
-    k1 ^= ((uint64_t)tail[0]) << 0;
-    k1 *= c1;
-    k1 = ROTL64(k1, 31);
-    k1 *= c2;
-    h1 ^= k1;
-  };
-
-  //----------
-  // finalization
-
-  h1 ^= len;
-  h2 ^= len;
-
-  h1 += h2;
-  h2 += h1;
-
-  h1 = fmix64(h1);
-  h2 = fmix64(h2);
-
-  h1 += h2;
-  h2 += h1;
-
-  ((uint64_t*)out)[0] = h1;
-  ((uint64_t*)out)[1] = h2;
-}
-
-//-----------------------------------------------------------------------------
diff --git a/utils/src/MurmurHash3.h b/utils/src/MurmurHash3.h
index 1729c4abe..61dac2dc8 100644
--- a/utils/src/MurmurHash3.h
+++ b/utils/src/MurmurHash3.h
@@ -28,10 +28,6 @@ typedef unsigned __int64 uint64_t;
 
 void MurmurHash3_x86_32(const void* key, int len, uint32_t seed, void* out);
 
-void MurmurHash3_x86_128(const void* key, int len, uint32_t seed, void* out);
-
-void MurmurHash3_x64_128(const void* key, int len, uint32_t seed, void* out);
-
 //-----------------------------------------------------------------------------
 
 #endif // _MURMURHASH3_H_