!14972 fix codedex

From: @he-botao
Reviewed-by: @oacjiewen,@wuxuejian
Signed-off-by: @wuxuejian

mindspore/ccsrc/backend/kernel_compiler/cpu/cpu_kernel.h

@@ -150,6 +150,7 @@ class BroadcastIterator {
  public:
   BroadcastIterator(std::vector<size_t> input_shape_a, std::vector<size_t> input_shape_b,
                     std::vector<size_t> output_shape);
+  virtual ~BroadcastIterator() = default;
   inline size_t GetInputPosA() const { return input_pos_[0]; }
   inline size_t GetInputPosB() const { return input_pos_[1]; }
   void SetPos(size_t pos);
@@ -174,6 +175,7 @@ class BroadcastIterator {
 class TransposeIterator {
  public:
   TransposeIterator(std::vector<size_t> output_shape, std::vector<size_t> axes, const std::vector<size_t> &input_shape);
+  virtual ~TransposeIterator() = default;
   inline size_t GetPos() const { return pos_; }
   void SetPos(size_t pos);
   void GenNextPos();

mindspore/ccsrc/backend/kernel_compiler/cpu/dropout_cpu_kernel.h

@@ -54,7 +54,6 @@ MS_REG_CPU_KERNEL(
   Dropout,
   KernelAttr().AddInputAttr(kNumberTypeFloat32).AddOutputAttr(kNumberTypeFloat32).AddOutputAttr(kNumberTypeFloat32),
   DropoutCPUKernel);
-
 }  // namespace kernel
 }  // namespace mindspore
 #endif  // MINDSPORE_CCSRC_BACKEND_KERNEL_COMPILER_CPU_DROPOUT_CPU_KERNEL_H_

mindspore/ccsrc/backend/kernel_compiler/cpu/isfinite_cpu_kernel.cc

@@ -90,6 +90,5 @@ void IsFiniteCPUKernel::LaunchKernelOther(const std::vector<AddressPtr> &inputs,
     output[i] = true;
   }
 }
-
 }  // namespace kernel
 }  // namespace mindspore

mindspore/ccsrc/backend/kernel_compiler/cpu/isfinite_cpu_kernel.h

@@ -86,7 +86,6 @@ MS_REG_CPU_KERNEL(IsFinite, KernelAttr().AddInputAttr(kNumberTypeUInt32).AddOutp
 
 MS_REG_CPU_KERNEL(IsFinite, KernelAttr().AddInputAttr(kNumberTypeUInt64).AddOutputAttr(kNumberTypeBool),
                   IsFiniteCPUKernel);
-
 }  // namespace kernel
 }  // namespace mindspore