Remove unnecessary binding.h includes in blink

There is no use of mojo::Binding in Blink. So,
we don't need to keep unnecessary binding.h includes.

Bug: 955171
Change-Id: I1262eb5052f8f5ed468c137cc2c13162b269a463
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1958266Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Gyuyoung Kim <gyuyoung@igalia.com>
Cr-Commit-Position: refs/heads/master@{#723632}

third_party/blink/public/common/loader/mime_sniffing_url_loader.h

@@ -11,7 +11,6 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string_piece.h"
-#include "mojo/public/cpp/bindings/binding.h"
 #include "mojo/public/cpp/bindings/pending_receiver.h"
 #include "mojo/public/cpp/bindings/pending_remote.h"
 #include "mojo/public/cpp/bindings/receiver.h"

third_party/blink/renderer/core/exported/web_frame_test.cc

@@ -41,7 +41,6 @@
 #include "cc/layers/picture_layer.h"
 #include "cc/trees/layer_tree_host.h"
 #include "cc/trees/scroll_and_scale_set.h"
-#include "mojo/public/cpp/bindings/binding.h"
 #include "mojo/public/cpp/bindings/pending_remote.h"
 #include "mojo/public/cpp/bindings/receiver.h"
 #include "skia/public/mojom/skcolor.mojom-blink.h"

third_party/blink/renderer/modules/idle/idle_state.h

@@ -6,7 +6,6 @@
 #define THIRD_PARTY_BLINK_RENDERER_MODULES_IDLE_IDLE_STATE_H_
 
 #include "base/macros.h"
-#include "mojo/public/cpp/bindings/binding.h"
 #include "third_party/blink/public/mojom/idle/idle_manager.mojom-blink.h"
 #include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
 

third_party/blink/renderer/modules/sms/sms.h

@@ -6,7 +6,6 @@
 #define THIRD_PARTY_BLINK_RENDERER_MODULES_SMS_SMS_H_
 
 #include "base/macros.h"
-#include "mojo/public/cpp/bindings/binding.h"
 #include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
 #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"