disk_cache/blockfile: Remove debug aliases

The bug they were meant to help track down is now fixed, so no
reason to keep them around.

(Previously added in https://chromium-review.googlesource.com/c/chromium/src/+/1224670)

Bug: 882246
Change-Id: I4ada70dd810e07f6fc7ecaaf873fa99d4cf6263b
Reviewed-on: https://chromium-review.googlesource.com/1254464Reviewed-by: Asanka Herath <asanka@chromium.org>
Commit-Queue: Maks Orlovich <morlovich@chromium.org>
Cr-Commit-Position: refs/heads/master@{#595534}

net/disk_cache/blockfile/entry_impl.cc

@@ -6,7 +6,6 @@
 
 #include <limits>
 
-#include "base/debug/alias.h"
 #include "base/hash.h"
 #include "base/macros.h"
 #include "base/strings/string_util.h"
@@ -1148,19 +1147,6 @@ int EntryImpl::InternalWriteData(int index,
   backend_->OnWrite(buf_len);
 
   if (user_buffers_[index].get()) {
-    // Temporary to debug https://crbug.com/882246
-    base::debug::Alias(&index);
-    base::debug::Alias(&offset);
-    base::debug::Alias(&buf);
-    const char* raw_data = nullptr;
-    void* buf_vptr = nullptr;
-    if (buf) {
-      raw_data = buf->data();
-      memcpy(&buf_vptr, static_cast<void*>(buf), sizeof(void*));
-    }
-    base::debug::Alias(&raw_data);
-    base::debug::Alias(&buf_vptr);
-
     // Complete the operation locally.
     user_buffers_[index]->Write(offset, buf, buf_len);
     ReportIOTime(kWrite, start);