Revert of Change how the quota system computes the total poolsize for temporary storage

blimp/engine/app/blimp_content_browser_client.h

Index: blimp/engine/app/blimp_content_browser_client.h
diff --git a/blimp/engine/app/blimp_content_browser_client.h b/blimp/engine/app/blimp_content_browser_client.h
index 0aa2582f34f333c4d82559952ca98b5b00aa653c..d843da0cb939fd58867776282cb186236da00cb3 100644
--- a/blimp/engine/app/blimp_content_browser_client.h
+++ b/blimp/engine/app/blimp_content_browser_client.h
@@ -33,10 +33,6 @@ class BlimpContentBrowserClient : public content::ContentBrowserClient {
       content::RenderProcessHost* render_process_host) override;
   std::unique_ptr<base::Value> GetServiceManifestOverlay(
       const std::string& name) override;
-  void GetQuotaSettings(
-      content::BrowserContext* context,
-      content::StoragePartition* partition,
-      const storage::OptionalQuotaSettingsCallback& callback) override;
 
   BlimpBrowserContext* GetBrowserContext();