Remove iostream to output the shape

Author: junjihashimoto

examples/hello_world/run.cpp

@@ -40,7 +40,6 @@ int main(int argc, char **argv) {
   for (int i = 0; i < N; ++i) {
     inputArr[i] = static_cast<float>(i) / 10.0; // dummy input data
   }
-  std::cout << Shape{N} << std::endl;
   Tensor input = createTensor(ctx, Shape{N}, kf32, inputArr.data());
   Tensor output = createTensor(ctx, Shape{N}, kf32);
   Kernel op = createKernel(ctx, {kGelu, 256, kf32},

gpu.hpp

@@ -71,20 +71,6 @@ struct Shape {
   }
 };
 
-inline std::ostream& operator<<(std::ostream& os, const Shape& shape)
-{
-  int size = shape.rank;
-  os << "Shape: [";
-  for (int i=0;i<size-1;i++){
-    os << shape.data[i] << ",";
-  }
-  if ( size != 0 ) {
-    os << shape.data[size-1];
-  }
-  os << "]";
-  return os;
-}
-
 /**
  * @brief Returns the number of elements in a tensor with the given shape,
  * which is equal to the product of the dimensions.