clean code

Author: wuxun-zhang

src/operator/nn/pooling.cc

@@ -274,7 +274,6 @@ void PoolingComputeExCPU(const nnvm::NodeAttrs &attrs, const OpContext &ctx,
 
   // Pooling does not currently support working with views
   if (inputs[0].IsView() || outputs[0].IsView()) {
-    std::cout << "Fall back to Pooling backward pass..." << std::endl;
     FallBackCompute(PoolingCompute<cpu>, attrs, ctx, inputs, req, outputs);
     return;
   }
@@ -289,7 +288,6 @@ void PoolingComputeExCPU(const nnvm::NodeAttrs &attrs, const OpContext &ctx,
     MKLDNN_OPCHECK_RUN(PoolingCompute<cpu>, attrs, ctx, inputs, req, outputs);
     return;
   }
-  std::cout << "Fall back to Pooling forward pass..." << std::endl;
   FallBackCompute(PoolingCompute<cpu>, attrs, ctx, inputs, req, outputs);
 }
 
@@ -301,7 +299,6 @@ void PoolingGradComputeExCPU(const nnvm::NodeAttrs &attrs, const OpContext &ctx,
 
   // Pooling does not currently support working with views
   if (inputs[0].IsView() || outputs[0].IsView()) {
-    std::cout << "Fall back to Pooling backward pass..." << std::endl;
     FallBackCompute(PoolingGradCompute<cpu>, attrs, ctx, inputs, req, outputs);
     return;
   }
@@ -330,7 +327,6 @@ void PoolingGradComputeExCPU(const nnvm::NodeAttrs &attrs, const OpContext &ctx,
                        outputs);
     return;
   }
-  std::cout << "Fall back to Pooling backward pass..." << std::endl;
   FallBackCompute(PoolingGradCompute<cpu>, attrs, ctx, inputs, req, outputs);
 }