removed redundant checks

ggml-raw/ggml/ggml.c

@@ -434,8 +434,8 @@ static void quantize_row_q4_0_reference(const float * restrict x, void * restric
  const uint8_t vi0 = ((int8_t) (round(v0))) + 8;
  const uint8_t vi1 = ((int8_t) (round(v1))) + 8;
 
- assert(vi0 >= 0 && vi0 < 16);
- assert(vi1 >= 0 && vi1 < 16);
+ assert(vi0 < 16);
+ assert(vi1 < 16);
 
  pp[l/2] = vi0 | (vi1 << 4);
  }
@@ -687,8 +687,8 @@ void quantize_row_q4_1(const float * restrict x, void * restrict y, int k) {
  const uint8_t vi0 = round(v0);
  const uint8_t vi1 = round(v1);
 
- assert(vi0 >= 0 && vi0 < 16);
- assert(vi1 >= 0 && vi1 < 16);
+ assert(vi0 < 16);
+ assert(vi1 < 16);
 
  pp[l/2] = vi0 | (vi1 << 4);
  }