IRGen: Remove unused function

Author: slavapestov

lib/IRGen/GenDecl.cpp

@@ -5493,13 +5493,6 @@ Address IRGenFunction::createAlloca(llvm::Type *type,
   return Address(alloca, type, alignment);
 }
 
-/// Allocate a fixed-size buffer on the stack.
-Address IRGenFunction::createFixedSizeBufferAlloca(const llvm::Twine &name) {
-  return createAlloca(IGM.getFixedBufferTy(),
-                      getFixedBufferAlignment(IGM),
-                      name);
-}
-
 /// Get or create a global string constant.
 ///
 /// \returns an i8* with a null terminator; note that embedded nulls

lib/IRGen/IRGenFunction.h

@@ -218,7 +218,6 @@ class IRGenFunction {
                        const llvm::Twine &name = "");
   Address createAlloca(llvm::Type *ty, llvm::Value *arraySize, Alignment align,
                        const llvm::Twine &name = "");
-  Address createFixedSizeBufferAlloca(const llvm::Twine &name);
 
   StackAddress emitDynamicAlloca(SILType type, const llvm::Twine &name = "");
   StackAddress emitDynamicAlloca(llvm::Type *eltTy, llvm::Value *arraySize,