diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
index 7420f0079f..2d65765cb0 100644
--- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
@@ -2525,11 +2525,6 @@ PciEnumeratorLight (
 
     if (!EFI_ERROR (Status)) {
 
-      //
-      // Remove those PCI devices which are rejected when full enumeration
-      //
-      RemoveRejectedPciDevices (RootBridgeDev->Handle, RootBridgeDev);
-
       if (!PcdGetBool (PcdPciDisableBusEnumeration)) {
         //
         // Process option rom light
@@ -2652,117 +2647,6 @@ StartManagingRootBridge (
 
 }
 
-/**
-  This routine can be used to check whether a PCI device should be rejected when light enumeration.
-
-  @param PciIoDevice  Pci device instance.
-
-  @retval TRUE      This device should be rejected.
-  @retval FALSE     This device shouldn't be rejected.
-
-**/
-BOOLEAN
-IsPciDeviceRejected (
-  IN PCI_IO_DEVICE *PciIoDevice
-  )
-{
-  EFI_STATUS  Status;
-  UINT32      TestValue;
-  UINT32      OldValue;
-  UINT32      Mask;
-  UINT8       BarOffset;
-
-  //
-  // PPB should be skip!
-  //
-  if (IS_PCI_BRIDGE (&PciIoDevice->Pci)) {
-    return FALSE;
-  }
-
-  if (IS_CARDBUS_BRIDGE (&PciIoDevice->Pci)) {
-    //
-    // Only test base registers for P2C
-    //
-    for (BarOffset = 0x1C; BarOffset <= 0x38; BarOffset += 2 * sizeof (UINT32)) {
-
-      Mask    = (BarOffset < 0x2C) ? 0xFFFFF000 : 0xFFFFFFFC;
-      Status  = BarExisted (PciIoDevice, BarOffset, &TestValue, &OldValue);
-      if (EFI_ERROR (Status)) {
-        continue;
-      }
-
-      TestValue = TestValue & Mask;
-      if ((TestValue != 0) && (TestValue == (OldValue & Mask))) {
-        //
-        // The bar isn't programed, so it should be rejected
-        //
-        return TRUE;
-      }
-    }
-
-    return FALSE;
-  }
-
-  for (BarOffset = 0x14; BarOffset <= 0x24; BarOffset += sizeof (UINT32)) {
-    //
-    // Test PCI devices
-    //
-    Status = BarExisted (PciIoDevice, BarOffset, &TestValue, &OldValue);
-    if (EFI_ERROR (Status)) {
-      continue;
-    }
-
-    if ((TestValue & 0x01) != 0) {
-
-      //
-      // IO Bar
-      //
-      Mask      = 0xFFFFFFFC;
-      TestValue = TestValue & Mask;
-      if ((TestValue != 0) && (TestValue == (OldValue & Mask))) {
-        return TRUE;
-      }
-
-    } else {
-
-      //
-      // Mem Bar
-      //
-      Mask      = 0xFFFFFFF0;
-      TestValue = TestValue & Mask;
-
-      if ((TestValue & 0x07) == 0x04) {
-
-        //
-        // Mem64 or PMem64
-        //
-        BarOffset += sizeof (UINT32);
-        if ((TestValue != 0) && (TestValue == (OldValue & Mask))) {
-
-          //
-          // Test its high 32-Bit BAR
-          //
-          Status = BarExisted (PciIoDevice, BarOffset, &TestValue, &OldValue);
-          if (TestValue == OldValue) {
-            return TRUE;
-          }
-        }
-
-      } else {
-
-        //
-        // Mem32 or PMem32
-        //
-        if ((TestValue != 0) && (TestValue == (OldValue & Mask))) {
-          return TRUE;
-        }
-      }
-    }
-  }
-
-  return FALSE;
-}
-
 /**
   Reset all bus number from specific bridge.
 
diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.h b/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.h
index d76606c7df..36903906c2 100644
--- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.h
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.h
@@ -427,20 +427,6 @@ StartManagingRootBridge (
   IN PCI_IO_DEVICE *RootBridgeDev
   );
 
-/**
-  This routine can be used to check whether a PCI device should be rejected when light enumeration.
-
-  @param PciIoDevice  Pci device instance.
-
-  @retval TRUE      This device should be rejected.
-  @retval FALSE     This device shouldn't be rejected.
-
-**/
-BOOLEAN
-IsPciDeviceRejected (
-  IN PCI_IO_DEVICE *PciIoDevice
-  );
-
 /**
   Reset all bus number from specific bridge.
 
diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c
index 72690ab647..815b73fff9 100644
--- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c
@@ -138,67 +138,6 @@ GetBackPcCardBar (
   }
 }
 
-/**
-  Remove rejected pci device from specific root bridge
-  handle.
-
-  @param RootBridgeHandle  Specific parent root bridge handle.
-  @param Bridge            Bridge device instance.
-
-**/
-VOID
-RemoveRejectedPciDevices (
-  IN EFI_HANDLE        RootBridgeHandle,
-  IN PCI_IO_DEVICE     *Bridge
-  )
-{
-  PCI_IO_DEVICE   *Temp;
-  LIST_ENTRY      *CurrentLink;
-  LIST_ENTRY      *LastLink;
-
-  if (!FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {
-    return;
-  }
-
-  CurrentLink = Bridge->ChildList.ForwardLink;
-
-  while (CurrentLink != NULL && CurrentLink != &Bridge->ChildList) {
-
-    Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
-
-    if (IS_PCI_BRIDGE (&Temp->Pci)) {
-      //
-      // Remove rejected devices recusively
-      //
-      RemoveRejectedPciDevices (RootBridgeHandle, Temp);
-    } else {
-      //
-      // Skip rejection for all PPBs, while detect rejection for others
-      //
-      if (IsPciDeviceRejected (Temp)) {
-
-        //
-        // For P2C, remove all devices on it
-        //
-        if (!IsListEmpty (&Temp->ChildList)) {
-          RemoveAllPciDeviceOnBridge (RootBridgeHandle, Temp);
-        }
-
-        //
-        // Finally remove itself
-        //
-        LastLink = CurrentLink->BackLink;
-        RemoveEntryList (CurrentLink);
-        FreePciDevice (Temp);
-
-        CurrentLink = LastLink;
-      }
-    }
-
-    CurrentLink = CurrentLink->ForwardLink;
-  }
-}
-
 /**
   Dump the resourc map of the bridge device.
 
diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.h b/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.h
index 10b435d146..f8fa237f2b 100644
--- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.h
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.h
@@ -36,20 +36,6 @@ GetBackPcCardBar (
   IN  PCI_IO_DEVICE                  *PciIoDevice
   );
 
-/**
-  Remove rejected pci device from specific root bridge
-  handle.
-
-  @param RootBridgeHandle  Specific parent root bridge handle.
-  @param Bridge            Bridge device instance.
-
-**/
-VOID
-RemoveRejectedPciDevices (
-  IN EFI_HANDLE        RootBridgeHandle,
-  IN PCI_IO_DEVICE     *Bridge
-  );
-
 /**
   Submits the I/O and memory resource requirements for the specified PCI Host Bridge.