[cleanup] Remove dead {AllocatePage} function

R=mlippautz@chromium.org

Bug: v8:9396
Change-Id: If197687b6208257be18f91b4b172ec41600c21b4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784287Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63555}

src/utils/allocation.cc

@@ -197,16 +197,6 @@ bool SetPermissions(v8::PageAllocator* page_allocator, void* address,
   return page_allocator->SetPermissions(address, size, access);
 }
 
-byte* AllocatePage(v8::PageAllocator* page_allocator, void* hint,
-                   size_t* allocated) {
-  DCHECK_NOT_NULL(page_allocator);
-  size_t page_size = page_allocator->AllocatePageSize();
-  void* result = AllocatePages(page_allocator, hint, page_size, page_size,
-                               PageAllocator::kReadWrite);
-  if (result != nullptr) *allocated = page_size;
-  return static_cast<byte*>(result);
-}
-
 bool OnCriticalMemoryPressure(size_t length) {
   // TODO(bbudge) Rework retry logic once embedders implement the more
   // informative overload.

src/utils/allocation.h

@@ -89,7 +89,7 @@ V8_EXPORT_PRIVATE v8::PageAllocator* SetPlatformPageAllocatorForTesting(
     v8::PageAllocator* page_allocator);
 
 // Gets the page granularity for AllocatePages and FreePages. Addresses returned
-// by AllocatePages and AllocatePage are aligned to this size.
+// by AllocatePages are aligned to this size.
 V8_EXPORT_PRIVATE size_t AllocatePageSize();
 
 // Gets the granularity at which the permissions and release calls can be made.
@@ -142,13 +142,6 @@ inline bool SetPermissions(v8::PageAllocator* page_allocator, Address address,
                         access);
 }
 
-// Convenience function that allocates a single system page with read and write
-// permissions. |address| is a hint. Returns the base address of the memory and
-// the page size via |allocated| on success. Returns nullptr on failure.
-V8_EXPORT_PRIVATE
-V8_WARN_UNUSED_RESULT byte* AllocatePage(v8::PageAllocator* page_allocator,
-                                         void* address, size_t* allocated);
-
 // Function that may release reserved memory regions to allow failed allocations
 // to succeed. |length| is the amount of memory needed. Returns |true| if memory
 // could be released, false otherwise.