DevTools: Remove unused include from StorageHandler.

Bug: 1016065
Change-Id: I25f113d45ee642759555b7b08d0f24fc38c0f917
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2628068
Auto-Submit: Victor Costan <pwnall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#843428}

content/browser/devtools/protocol/storage_handler.cc

@@ -24,7 +24,6 @@
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/storage_partition.h"
-#include "storage/browser/quota/quota_client.h"
 #include "storage/browser/quota/quota_manager.h"
 #include "storage/browser/quota/quota_manager_proxy.h"
 #include "storage/browser/quota/quota_override_handle.h"