[cleanup] Remove dead code in frames.h

Change-Id: Idc91485e873dabd2cd304f2347e2565753342abd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2472001
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70610}

src/execution/frames.cc

@@ -663,8 +663,6 @@ StackFrame::Type StackFrame::GetCallerState(State* state) const {
   return ComputeType(iterator_, state);
 }
 
-Address StackFrame::UnpaddedFP() const { return fp(); }
-
 Address CommonFrame::GetCallerStackPointer() const {
   return fp() + CommonFrameConstants::kCallerSPOffset;
 }

src/execution/frames.h

@@ -242,12 +242,6 @@ class StackFrame {
   Address callee_fp() const { return state_.callee_fp; }
   inline Address callee_pc() const;
   Address caller_sp() const { return GetCallerStackPointer(); }
-
-  // If this frame is optimized and was dynamically aligned return its old
-  // unaligned frame pointer.  When the frame is deoptimized its FP will shift
-  // up one word and become unaligned.
-  Address UnpaddedFP() const;
-
   inline Address pc() const;
 
   // Skip authentication of the PC, when using CFI. Used in the profiler, where