build: remove upstreamed DraggableRegions patch (#43311)

build: remove upstreamed patch

patches/chromium/.patches

@@ -128,5 +128,4 @@ fix_font_face_resolution_when_renderer_is_blocked.patch
 feat_enable_passing_exit_code_on_service_process_crash.patch
 chore_remove_reference_to_chrome_browser_themes.patch
 feat_enable_customizing_symbol_color_in_framecaptionbutton.patch
-fix_potential_draggable_region_crash_when_no_mainframeimpl.patch
 build_expose_webplugininfo_interface_to_electron.patch

patches/chromium/fix_potential_draggable_region_crash_when_no_mainframeimpl.patch

@@ -1,35 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Shelley Vohr <shelley.vohr@gmail.com>
-Date: Thu, 1 Aug 2024 15:30:32 +0200
-Subject: Fix potential draggable region crash when no MainFrameImpl
-
-Fix a crash that can occur when SetSupportsDraggableRegions
-is called with `true` and there is no MainFrameImpl. When MainFrameImpl
-is nullptr, logic currently correctly returns early, but
-supports_draggable_regions_ is set before that happens. As a
-result, when SupportsDraggableRegions() is called, it will return
-true, and thus LocalFrameView::UpdateDocumentDraggableRegions() will
-call DraggableRegionsChanged(). This will trigger a crash in
-WebViewImpl::DraggableRegionsChanged(), as it assumes that
-MainFrameImpl is not null.
-
-Upstreamed in https://chromium-review.googlesource.com/c/chromium/src/+/5756619
-
-diff --git a/third_party/blink/renderer/core/exported/web_view_impl.cc b/third_party/blink/renderer/core/exported/web_view_impl.cc
-index 3f2b6287c66bc9ee9858cb96fb98b6c02029ccb5..4610082ee252bd67c31d97cc01016874f32409c7 100644
---- a/third_party/blink/renderer/core/exported/web_view_impl.cc
-+++ b/third_party/blink/renderer/core/exported/web_view_impl.cc
-@@ -4082,11 +4082,12 @@ bool WebViewImpl::IsFencedFrameRoot() const {
- }
- 
- void WebViewImpl::SetSupportsDraggableRegions(bool supports_draggable_regions) {
--  supports_draggable_regions_ = supports_draggable_regions;
-   if (!MainFrameImpl() || !MainFrameImpl()->GetFrame()) {
-     return;
-   }
- 
-+  supports_draggable_regions_ = supports_draggable_regions;
-+
-   LocalFrame* local_frame = MainFrameImpl()->GetFrame();
- 
-   if (supports_draggable_regions_) {