SILBridging: - unused createDeallocPackMetadata

This was added while implementing PackSpecialization, but went unused, so we
have removed it to prevent the next person who needs it from assuming it works.

Author: aidan-hall

SwiftCompilerSources/Sources/SIL/Builder.swift

@@ -256,12 +256,6 @@ public struct Builder {
     return notifyNew(dr.getAs(DeallocPackInst.self))
   }
 
-  @discardableResult
-  public func createDeallocPackMetadata(_ operand: Value) -> DeallocPackMetadataInst {
-    let dr = bridged.createDeallocPackMetadata(operand.bridged)
-    return notifyNew(dr.getAs(DeallocPackMetadataInst.self))
-  }
-
   @discardableResult
   public func createDeallocStackRef(_ operand: Value) -> DeallocStackRefInst {
     let dr = bridged.createDeallocStackRef(operand.bridged)

include/swift/SIL/SILBridging.h

@@ -1247,7 +1247,6 @@ struct BridgedBuilder{
   SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedInstruction createDeallocStack(BridgedValue operand) const;
   SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedInstruction createDeallocStackRef(BridgedValue operand) const;
   SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedInstruction createDeallocPack(BridgedValue operand) const;
-  SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedInstruction createDeallocPackMetadata(BridgedValue operand) const;
   SWIFT_IMPORT_UNSAFE BRIDGED_INLINE BridgedInstruction createAddressToPointer(BridgedValue address,
                                                                                BridgedType pointerTy,
                                                                                bool needsStackProtection) const;

include/swift/SIL/SILBridgingImpl.h

@@ -2385,10 +2385,6 @@ BridgedInstruction BridgedBuilder::createDeallocPack(BridgedValue operand) const
   return {unbridged().createDeallocPack(regularLoc(), operand.getSILValue())};
 }
 
-BridgedInstruction BridgedBuilder::createDeallocPackMetadata(BridgedValue operand) const {
-  return {unbridged().createDeallocPackMetadata(regularLoc(), operand.getSILValue())};
-}
-
 BridgedInstruction BridgedBuilder::createAddressToPointer(BridgedValue address, BridgedType pointerTy,
                                                           bool needsStackProtection) const {
   return {unbridged().createAddressToPointer(regularLoc(), address.getSILValue(), pointerTy.unbridged(),