polish tensor comment, test=document_fix (#54298)

paddle/phi/api/include/tensor.h

@@ -58,17 +58,13 @@ class AbstractAutogradMeta {
 
 /**
  * Tensor is the API description of the basic data structure in the
- * [ "Paddle Tensor Operation (phi)" Library ].
+ * [ "Paddle HIgh reusability operator (phi)" Library ].
  *
  * It is not limited to a simple n-dimensional array.
  * It contains a smart pointer to `TensorImpl`. The data description contained
  * in Tensor is defined by TensorImpl. Tensor only defines the interface for
  * computation.
  *
- * This is a new Tensor design, which is independent of the original
- * phi::DenseTensor in fluid. The original Tensor will be gradually discarded
- * in the future.
- *
  * Note: Tensor can be NULL state, Tensor is meaningful only when the
  * TensorImpl to which it is pointed is not empty.
  *
@@ -79,8 +75,8 @@ class AbstractAutogradMeta {
  * Note: Tensor cannot be inherited. The heterogeneous Tensor implementation
  * can be achieved by inheriting the underlying TensorBase.
  *
- * Note: This Tensor API is suitable for training and custom operators,
- * another simple Tensor design may be required for inference.
+ * Note: This Tensor API is suitable for training，inference and custom
+ * operators.
  */
 
 class PADDLE_API Tensor final {